diff --git a/htdocs/core/lib/security2.lib.php b/htdocs/core/lib/security2.lib.php
index a32805b6169..dc73c70b4ba 100644
--- a/htdocs/core/lib/security2.lib.php
+++ b/htdocs/core/lib/security2.lib.php
@@ -106,6 +106,7 @@ function checkLoginPassEntity($usertotest,$passwordtotest,$entitytotest,$authmod
     				sleep(1);
     				$langs->load('main');
     				$langs->load('other');
+    				$langs->load('errors');
     				$_SESSION["dol_loginmesg"]=$langs->trans("ErrorFailedToLoadLoginFileForMode",$mode);
     			}
     		}
diff --git a/htdocs/langs/en_US/errors.lang b/htdocs/langs/en_US/errors.lang
index acbb0e286b9..0462b4d1dc9 100644
--- a/htdocs/langs/en_US/errors.lang
+++ b/htdocs/langs/en_US/errors.lang
@@ -174,6 +174,7 @@ ErrorStockIsNotEnoughToAddProductOnOrder=Stock is not enougth for product %s to
 ErrorStockIsNotEnoughToAddProductOnInvoice=Stock is not enougth for product %s to add it into a new invoice.
 ErrorStockIsNotEnoughToAddProductOnShipment=Stock is not enougth for product %s to add it into a new shipment.
 ErrorStockIsNotEnoughToAddProductOnProposal=Stock is not enougth for product %s to add it into a new proposal.
+ErrorFailedToLoadLoginFileForMode=Failed to get the login file for mode '%s'.
 
 # Warnings
 WarningPasswordSetWithNoAccount=A password was set for this member. However, no user account was created. So this password is stored but can't be used to login to Dolibarr. It may be used by an external module/interface but if you don't need to define any login nor password for a member, you can disable option "Manage a login for each member" from Member module setup. If you need to manage a login but don't need any password, you can keep this field empty to avoid this warning. Note: Email can also be used as a login if the member is linked to a user.