diff --git a/htdocs/api/class/api_documents.class.php b/htdocs/api/class/api_documents.class.php
index 96d66448428..04ad7f19760 100644
--- a/htdocs/api/class/api_documents.class.php
+++ b/htdocs/api/class/api_documents.class.php
@@ -198,7 +198,7 @@ class Documents extends DolibarrApi
 			if ($result <= 0) {
 				throw new RestException(500, 'Error generating document');
 			}
-		} elseif($modulepart == 'facture_fournisseur' || $modulepart == 'invoice_supplier') {
+		} elseif ($modulepart == 'facture_fournisseur' || $modulepart == 'invoice_supplier') {
 			require_once DOL_DOCUMENT_ROOT . '/fourn/class/fournisseur.facture.class.php';
 			$this->supplier_invoice = new FactureFournisseur($this->db);
 			$result = $this->supplier_invoice->fetch(0, preg_replace('/\.[^\.]+$/', '', basename($original_file)));