diff --git a/main/exercice/export/exercise_import.inc.php b/main/exercice/export/exercise_import.inc.php
index 1dfcc62e60..e83b475480 100755
--- a/main/exercice/export/exercise_import.inc.php
+++ b/main/exercice/export/exercise_import.inc.php
@@ -140,7 +140,7 @@ function import_exercise($file)
 
     if (!$file_found) {
 
-        return 'No XML file found in the zip';
+        return 'NoXMLFileFoundInTheZip';
     }
 
     if ($result == false) {