diff --git a/htdocs/api/class/api_setup.class.php b/htdocs/api/class/api_setup.class.php
index 9c7cc01630d..406172590d7 100644
--- a/htdocs/api/class/api_setup.class.php
+++ b/htdocs/api/class/api_setup.class.php
@@ -1441,7 +1441,7 @@ class Setup extends DolibarrApi
 	{
 		global $conf;
 
-		if (empty($conf->socialnetworks->enabled)) {
+		if (!isModEnabled('socialnetworks')) {
 			throw new RestException(400, 'API not available: this dictionary is not enabled by setup');
 		}
 
diff --git a/htdocs/api/index.php b/htdocs/api/index.php
index 4c0d36fdcfe..0abf864084d 100644
--- a/htdocs/api/index.php
+++ b/htdocs/api/index.php
@@ -237,7 +237,7 @@ if (!empty($reg[1]) && $reg[1] == 'explorer' && ($reg[2] == '/swagger.json' || $
 
 					// Defined if module is enabled
 					$enabled = true;
-					if (empty($conf->$modulenameforenabled->enabled)) {
+					if (!isModEnabled($modulenameforenabled)) {
 						$enabled = false;
 					}
 
diff --git a/htdocs/bom/class/bom.class.php b/htdocs/bom/class/bom.class.php
index af14185b3d0..d15de486560 100644
--- a/htdocs/bom/class/bom.class.php
+++ b/htdocs/bom/class/bom.class.php
@@ -1376,7 +1376,7 @@ class BOM extends CommonObject
 					$unit = measuringUnitString($line->fk_unit, '', '', 1);
 					$qty = convertDurationtoHour($line->qty, $unit);
 
-					if ($conf->workstation->enabled && !empty($tmpproduct->fk_default_workstation)) {
+					if (isModEnabled('workstation') && !empty($tmpproduct->fk_default_workstation)) {
 						$workstation = new Workstation($this->db);
 						$res = $workstation->fetch($tmpproduct->fk_default_workstation);
 
diff --git a/htdocs/bom/tpl/objectline_create.tpl.php b/htdocs/bom/tpl/objectline_create.tpl.php
index 41aeec4b96f..0243928116e 100644
--- a/htdocs/bom/tpl/objectline_create.tpl.php
+++ b/htdocs/bom/tpl/objectline_create.tpl.php
@@ -84,7 +84,7 @@ if ($nolinesbefore) {
 		print '<td class="linecollost right">' . $form->textwithpicto($langs->trans('ManufacturingEfficiency'), $langs->trans('ValueOfMeansLoss')) . '</td>';
 	} else {
 		print '<td class="linecolunit right">' . $form->textwithpicto($langs->trans('Unit'), '').'</td>';
-		if ($conf->workstation->enabled) print '<td class="linecolworkstation right">' .  $form->textwithpicto($langs->trans('Workstation'), '') . '</td>';
+		if (isModEnabled('workstation')) print '<td class="linecolworkstation right">' .  $form->textwithpicto($langs->trans('Workstation'), '') . '</td>';
 		print '<td class="linecoltotalcost right">' .  $form->textwithpicto($langs->trans('TotalCost'), '') . '</td>';
 	}
 
diff --git a/htdocs/bom/tpl/objectline_title.tpl.php b/htdocs/bom/tpl/objectline_title.tpl.php
index f93fb59fe0d..5252baf61ca 100644
--- a/htdocs/bom/tpl/objectline_title.tpl.php
+++ b/htdocs/bom/tpl/objectline_title.tpl.php
@@ -85,7 +85,7 @@ if ($filtertype != 1) {
 } else {
 	print '<td class="linecolunit right">' . $form->textwithpicto($langs->trans('Unit'), '').'</td>';
 
-	if ($conf->workstation->enabled) print '<td class="linecolworkstation right">' .  $form->textwithpicto($langs->trans('DefaultWorkstation'), '') . '</td>';
+	if (isModEnabled('workstation')) print '<td class="linecolworkstation right">' .  $form->textwithpicto($langs->trans('DefaultWorkstation'), '') . '</td>';
 
 	// Cost
 	print '<td class="linecolcost right">'.$form->textwithpicto($langs->trans("TotalCost"), $langs->trans("BOMTotalCostService")).'</td>';