diff --git a/htdocs/adherents/document.php b/htdocs/adherents/document.php
index 969bf3a8906..35ce841ba6e 100644
--- a/htdocs/adherents/document.php
+++ b/htdocs/adherents/document.php
@@ -73,7 +73,7 @@ $upload_dir = $conf->adherent->dir_output."/".get_exdir(0, 0, 0, 1, $object, 'me
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/asset/document.php b/htdocs/asset/document.php
index 4c2e36aed9a..a9653624b3e 100644
--- a/htdocs/asset/document.php
+++ b/htdocs/asset/document.php
@@ -81,7 +81,7 @@ if ($id > 0 || !empty($ref)) $upload_dir = $conf->sellyoursaas->multidir_output[
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/bom/bom_document.php b/htdocs/bom/bom_document.php
index cf752878605..ddd9fe0eee6 100644
--- a/htdocs/bom/bom_document.php
+++ b/htdocs/bom/bom_document.php
@@ -76,7 +76,7 @@ if ($id > 0 || !empty($ref)) $upload_dir = $conf->bom->multidir_output[$object->
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/comm/action/document.php b/htdocs/comm/action/document.php
index 5b4cc58bb08..2d0c1dc8133 100644
--- a/htdocs/comm/action/document.php
+++ b/htdocs/comm/action/document.php
@@ -80,7 +80,7 @@ $modulepart = 'actions';
 /*
  * Actions
  */
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/comm/propal/document.php b/htdocs/comm/propal/document.php
index fbe7fdbec5c..530f7392f54 100644
--- a/htdocs/comm/propal/document.php
+++ b/htdocs/comm/propal/document.php
@@ -80,7 +80,7 @@ if ($object->id > 0)
 {
 	$object->fetch_thirdparty();
 	$upload_dir = $conf->propal->multidir_output[$object->entity].'/'.dol_sanitizeFileName($object->ref);
-	include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+	include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 }
 
 
diff --git a/htdocs/commande/document.php b/htdocs/commande/document.php
index f95f61b6025..f51d8635787 100644
--- a/htdocs/commande/document.php
+++ b/htdocs/commande/document.php
@@ -80,7 +80,7 @@ if ($object->fetch($id))
 	$upload_dir = $conf->commande->multidir_output[$object->entity]."/".dol_sanitizeFileName($object->ref);
 }
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/compta/bank/account_statement_document.php b/htdocs/compta/bank/account_statement_document.php
index fd7c6b1d292..b1c5c937f76 100644
--- a/htdocs/compta/bank/account_statement_document.php
+++ b/htdocs/compta/bank/account_statement_document.php
@@ -133,7 +133,7 @@ if (!empty($numref))
 	$upload_dir = $conf->bank->dir_output."/".$id."/statement/".dol_sanitizeFileName($numref);
 }
 $backtopage = $_SERVER['PHP_SELF']."?account=".$id."&num=".$numref;
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/compta/bank/document.php b/htdocs/compta/bank/document.php
index c67c0496727..cb2e4915323 100644
--- a/htdocs/compta/bank/document.php
+++ b/htdocs/compta/bank/document.php
@@ -77,7 +77,7 @@ if ($object->id > 0)
 	$upload_dir = $conf->bank->dir_output."/".dol_sanitizeFileName($object->ref);
 }
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/compta/bank/various_payment/document.php b/htdocs/compta/bank/various_payment/document.php
index 14187bf51e3..1cd8d285eeb 100644
--- a/htdocs/compta/bank/various_payment/document.php
+++ b/htdocs/compta/bank/various_payment/document.php
@@ -66,7 +66,7 @@ $modulepart = 'banque';
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/compta/deplacement/document.php b/htdocs/compta/deplacement/document.php
index 86d0dd383f1..c1e432f4b1a 100644
--- a/htdocs/compta/deplacement/document.php
+++ b/htdocs/compta/deplacement/document.php
@@ -71,7 +71,7 @@ $modulepart = 'trip';
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/compta/facture/document.php b/htdocs/compta/facture/document.php
index 3922228c4fa..cbf6b045e85 100644
--- a/htdocs/compta/facture/document.php
+++ b/htdocs/compta/facture/document.php
@@ -79,7 +79,7 @@ if ($object->fetch($id))
  * Actions
  */
 
-require_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/compta/sociales/document.php b/htdocs/compta/sociales/document.php
index dbb01060a4d..d65f2cf7a3c 100644
--- a/htdocs/compta/sociales/document.php
+++ b/htdocs/compta/sociales/document.php
@@ -77,7 +77,7 @@ $modulepart = 'tax';
  * Actions
  */
 
-require_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 if ($action == 'setlib' && $user->rights->tax->charges->creer)
 {
diff --git a/htdocs/compta/tva/document.php b/htdocs/compta/tva/document.php
index e310e61fcb8..addaf50d990 100644
--- a/htdocs/compta/tva/document.php
+++ b/htdocs/compta/tva/document.php
@@ -78,7 +78,7 @@ $modulepart = 'tax-vat';
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 if ($action == 'setlib' && $user->rights->tax->charges->creer)
 {
diff --git a/htdocs/contrat/document.php b/htdocs/contrat/document.php
index ba15af0de19..dfdb0fe6d31 100644
--- a/htdocs/contrat/document.php
+++ b/htdocs/contrat/document.php
@@ -85,7 +85,7 @@ $hookmanager->initHooks(array('contractcard', 'globalcard'));
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/don/document.php b/htdocs/don/document.php
index 9ff1fa98ea2..a211f076253 100644
--- a/htdocs/don/document.php
+++ b/htdocs/don/document.php
@@ -78,7 +78,7 @@ $modulepart = 'don';
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 if ($action == 'classin' && $user->rights->don->creer)
 {
diff --git a/htdocs/expedition/document.php b/htdocs/expedition/document.php
index a9b19ede7c3..2b710e87dee 100644
--- a/htdocs/expedition/document.php
+++ b/htdocs/expedition/document.php
@@ -76,7 +76,7 @@ if ($object->fetch($id))
 	$upload_dir = $conf->expedition->dir_output."/sending/".dol_sanitizeFileName($object->ref);
 }
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/fichinter/document.php b/htdocs/fichinter/document.php
index 1b9326468f4..aaab2072013 100644
--- a/htdocs/fichinter/document.php
+++ b/htdocs/fichinter/document.php
@@ -75,7 +75,7 @@ $modulepart = 'fichinter';
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/fourn/commande/document.php b/htdocs/fourn/commande/document.php
index d5a4455db06..293edb549ea 100644
--- a/htdocs/fourn/commande/document.php
+++ b/htdocs/fourn/commande/document.php
@@ -78,7 +78,7 @@ $object->fetch_thirdparty();
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/fourn/facture/document.php b/htdocs/fourn/facture/document.php
index 36f5a45b25e..4b2b45c7226 100644
--- a/htdocs/fourn/facture/document.php
+++ b/htdocs/fourn/facture/document.php
@@ -74,7 +74,7 @@ if ($object->fetch($id, $ref))
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/holiday/document.php b/htdocs/holiday/document.php
index f366bb50c85..3bb48d1de15 100644
--- a/htdocs/holiday/document.php
+++ b/htdocs/holiday/document.php
@@ -72,7 +72,7 @@ $modulepart = 'holiday';
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/loan/document.php b/htdocs/loan/document.php
index 91bfaf1f921..a7811dfa04a 100644
--- a/htdocs/loan/document.php
+++ b/htdocs/loan/document.php
@@ -68,7 +68,7 @@ $modulepart = 'loan';
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/modulebuilder/template/myobject_document.php b/htdocs/modulebuilder/template/myobject_document.php
index 1cd3de2ebd9..f1424906dd6 100644
--- a/htdocs/modulebuilder/template/myobject_document.php
+++ b/htdocs/modulebuilder/template/myobject_document.php
@@ -121,7 +121,7 @@ $permissiontoadd = $user->rights->mymodule->myobject->write; // Used by the incl
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/mrp/mo_document.php b/htdocs/mrp/mo_document.php
index 01131b9ffa2..d3040918aae 100644
--- a/htdocs/mrp/mo_document.php
+++ b/htdocs/mrp/mo_document.php
@@ -80,7 +80,7 @@ $result = restrictedArea($user, 'mrp', $object->id, 'mrp_mo', '', 'fk_soc', 'row
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/product/document.php b/htdocs/product/document.php
index f8f5322f2f8..1de27318f84 100644
--- a/htdocs/product/document.php
+++ b/htdocs/product/document.php
@@ -115,7 +115,7 @@ if (empty($reshook))
 	}
 
 	// Action submit/delete file/link
-	include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+	include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 }
 
 if ($action == 'filemerge')
diff --git a/htdocs/product/stock/productlot_document.php b/htdocs/product/stock/productlot_document.php
index 535486f8c62..c9b98a1ffe4 100644
--- a/htdocs/product/stock/productlot_document.php
+++ b/htdocs/product/stock/productlot_document.php
@@ -94,7 +94,7 @@ if ($reshook < 0) setEventMessages($hookmanager->error, $hookmanager->errors, 'e
 if (empty($reshook))
 {
 	// Action submit/delete file/link
-	include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+	include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 }
 
 $permtoedit = $user->rights->produit->creer;
diff --git a/htdocs/projet/document.php b/htdocs/projet/document.php
index bed7f6a43e1..5557740704d 100644
--- a/htdocs/projet/document.php
+++ b/htdocs/projet/document.php
@@ -76,7 +76,7 @@ if (!$sortfield) $sortfield = "name";
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/projet/tasks/document.php b/htdocs/projet/tasks/document.php
index ca273bb36ef..ef4ad0292f3 100644
--- a/htdocs/projet/tasks/document.php
+++ b/htdocs/projet/tasks/document.php
@@ -106,7 +106,7 @@ if ($id > 0 || !empty($ref))
 	}
 }
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/recruitment/recruitmentcandidature_document.php b/htdocs/recruitment/recruitmentcandidature_document.php
index 1c801f27fd4..8c29ef9e46c 100644
--- a/htdocs/recruitment/recruitmentcandidature_document.php
+++ b/htdocs/recruitment/recruitmentcandidature_document.php
@@ -92,7 +92,7 @@ $permissiontoadd = $user->rights->recruitment->recruitmentjobposition->write; //
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/recruitment/recruitmentjobposition_document.php b/htdocs/recruitment/recruitmentjobposition_document.php
index 3005b4cc1be..d05e9945eb5 100644
--- a/htdocs/recruitment/recruitmentjobposition_document.php
+++ b/htdocs/recruitment/recruitmentjobposition_document.php
@@ -92,7 +92,7 @@ $permissiontoadd = $user->rights->recruitment->recruitmentjobposition->write; //
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/resource/document.php b/htdocs/resource/document.php
index 0019d6b99ed..00dc42741e1 100644
--- a/htdocs/resource/document.php
+++ b/htdocs/resource/document.php
@@ -72,7 +72,7 @@ $modulepart = 'resource';
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/salaries/document.php b/htdocs/salaries/document.php
index dc86a274837..777686c96db 100644
--- a/htdocs/salaries/document.php
+++ b/htdocs/salaries/document.php
@@ -73,7 +73,7 @@ $modulepart = 'salaries';
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/societe/document.php b/htdocs/societe/document.php
index 1d7ba3d2925..034522a3652 100644
--- a/htdocs/societe/document.php
+++ b/htdocs/societe/document.php
@@ -81,7 +81,7 @@ $hookmanager->initHooks(array('thirdpartydocument', 'globalcard'));
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/supplier_proposal/document.php b/htdocs/supplier_proposal/document.php
index 127b45466e8..09fb48ab1fb 100644
--- a/htdocs/supplier_proposal/document.php
+++ b/htdocs/supplier_proposal/document.php
@@ -69,7 +69,7 @@ if ($object->id > 0)
 {
 	$object->fetch_thirdparty();
 	$upload_dir = $conf->supplier_proposal->dir_output.'/'.dol_sanitizeFileName($object->ref);
-	include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+	include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 }
 
 
diff --git a/htdocs/ticket/document.php b/htdocs/ticket/document.php
index 45ee7aba268..c876e9d33d8 100644
--- a/htdocs/ticket/document.php
+++ b/htdocs/ticket/document.php
@@ -73,7 +73,7 @@ if ($result < 0) {
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 
diff --git a/htdocs/user/document.php b/htdocs/user/document.php
index 5440ceeb725..b9f282f17ed 100644
--- a/htdocs/user/document.php
+++ b/htdocs/user/document.php
@@ -106,7 +106,7 @@ $reshook = $hookmanager->executeHooks('doActions', $parameters, $object, $action
 if ($reshook < 0) setEventMessages($hookmanager->error, $hookmanager->errors, 'errors');
 
 if (empty($reshook)) {
-	include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+	include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 }
 
 
diff --git a/htdocs/workstation/workstation_document.php b/htdocs/workstation/workstation_document.php
index 89a34f55549..b06bf3540a4 100755
--- a/htdocs/workstation/workstation_document.php
+++ b/htdocs/workstation/workstation_document.php
@@ -113,7 +113,7 @@ $permissiontoadd = $user->rights->workstation->workstation->write; // Used by th
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*
diff --git a/htdocs/zapier/hook_document.php b/htdocs/zapier/hook_document.php
index 15ec591bea6..5b1af8080de 100644
--- a/htdocs/zapier/hook_document.php
+++ b/htdocs/zapier/hook_document.php
@@ -78,7 +78,7 @@ if ($id > 0 || !empty($ref)) $upload_dir = $conf->sellyoursaas->multidir_output[
  * Actions
  */
 
-include_once DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
+include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 
 
 /*