diff --git a/apps/maarch_entreprise/actions/index_mlb.php b/apps/maarch_entreprise/actions/index_mlb.php
index 29c0aed4c649a56593adf3b94222a9d7a1a6ba31..493b519626798bfcddc08fb58d172362b77ccbcd 100755
--- a/apps/maarch_entreprise/actions/index_mlb.php
+++ b/apps/maarch_entreprise/actions/index_mlb.php
@@ -1021,7 +1021,7 @@ function check_form($formId, $values)
         $_SESSION['upfile']['error']='0';
         $_SESSION['upfile']['format']='maarch';
     } elseif (empty($_SESSION['upfile']['format'])) {
-        $_SESSION['action_error'] = _FILE . ' ' . _MANDATORY;
+        $_SESSION['action_error'] = _FILE . ' ' . strtolower(_MANDATORY);
         return false;
     }
 
@@ -1273,7 +1273,7 @@ function process_category_check($catId, $values)
 
         if ($priority === '') {
             $_SESSION['action_error'] = $_ENV['categories'][$catId]['priority']['label']
-                . " " . _MANDATORY;
+                . " " . strtolower(_MANDATORY);
             return false;
         }
     }
@@ -1289,7 +1289,7 @@ function process_category_check($catId, $values)
         }
         if (! $contactType) {
             $_SESSION['action_error'] = $_ENV['categories'][$catId]['other_cases']['type_contact']['label']
-                . " " . _MANDATORY;
+                . " " . strtolower(_MANDATORY);
             return false;
         }
         $contact = get_value_fields($values, 'contactid');
@@ -1322,7 +1322,7 @@ function process_category_check($catId, $values)
                 || ! isset($_SESSION['indexing']['diff_list']['dest']['users'][0])
             ) {
                 $_SESSION['action_error'] = $_ENV['categories'][$catId]['other_cases']['diff_list']['label']
-                    . " " . _MANDATORY;
+                    . " " . strtolower(_MANDATORY);
                 return false;
             }
         }
diff --git a/apps/maarch_entreprise/actions/validate_mail.php b/apps/maarch_entreprise/actions/validate_mail.php
index 360eb8e185d089cb1c7524e2c9f4af7c84c77a42..283227c42fd262852b6816e43c9f6c39e6d2fc4b 100755
--- a/apps/maarch_entreprise/actions/validate_mail.php
+++ b/apps/maarch_entreprise/actions/validate_mail.php
@@ -1490,7 +1490,7 @@ function process_category_check($cat_id, $values)
         $priority = get_value_fields($values, 'priority');
 
         if ($priority === '') {
-            $_SESSION['action_error'] = $_ENV['categories'][$cat_id]['priority']['label']. " " . _MANDATORY;
+            $_SESSION['action_error'] = $_ENV['categories'][$cat_id]['priority']['label']. " " . strtolower(_MANDATORY);
             return false;
         }
     }
@@ -1509,7 +1509,7 @@ function process_category_check($cat_id, $values)
             $contact_type = get_value_fields($values, 'type_multi_contact_external');
         }
         if(!$contact_type){
-            $_SESSION['action_error'] = $_ENV['categories'][$cat_id]['other_cases']['type_contact']['label'] . " " . _MANDATORY . "";
+            $_SESSION['action_error'] = $_ENV['categories'][$cat_id]['other_cases']['type_contact']['label'] . " " . strtolower(_MANDATORY) . "";
             return false;
         }
         
@@ -1540,7 +1540,7 @@ function process_category_check($cat_id, $values)
         {
             if(empty($_SESSION['indexing']['diff_list']['dest']['users'][0]['user_id']) || !isset($_SESSION['indexing']['diff_list']['dest']['users'][0]['user_id']))
             {
-                $_SESSION['action_error'] = $_ENV['categories'][$cat_id]['other_cases']['diff_list']['label']." "._MANDATORY."";
+                $_SESSION['action_error'] = $_ENV['categories'][$cat_id]['other_cases']['diff_list']['label']." ".strtolower(_MANDATORY)."";
                 return false;
             }
         }