diff --git a/core/class/helper.class.php b/core/class/helper.class.php
index 5cc558dc..34332ccd 100755
--- a/core/class/helper.class.php
+++ b/core/class/helper.class.php
@@ -170,7 +170,10 @@ class helper {
 							$delete = true;
 					}
 					// Constante DATADIRECTORY
-					if (array_key_exists('DATADIRECTORY', $class_constants)) {
+					if ( array_key_exists('DATADIRECTORY', $class_constants) 
+						 && $class_constants['DATADIRECTORY'] !== []
+					     && is_array($class_constants['DATADIRECTORY'])
+					   ) {
 							$dataDirectory = $value::DATADIRECTORY;
 					} else {
 							$dataDirectory = ['fr/module.json'];