diff --git a/class/actions_digiquali.class.php b/class/actions_digiquali.class.php
index 3d2fd62f..832ed656 100644
--- a/class/actions_digiquali.class.php
+++ b/class/actions_digiquali.class.php
@@ -241,11 +241,12 @@ public function printCommonFooter($parameters)
     /**
      * Overloading the formObjectOptions function : replacing the parent's function with the one below
      *
-     * @param array $parameters Hook metadata (context, etc...)
-     * @param object $object     Object
-     * @return void
+     * @param  array        $parameters Hook metadatas (context, etc...)
+     * @param  object|null $object      Current object
+     * @return int                      0 < on error, 0 on success, 1 to replace standard code
      */
-    public function formObjectOptions(array $parameters, object $object) {
+    public function formObjectOptions(array $parameters, ?object $object): int
+    {
         if (strpos($parameters['context'], 'productlotcard') !== false) {
             $objectData = ['type' => $object->element, 'id' => $object->id];
 
@@ -257,6 +258,8 @@ public function formObjectOptions(array $parameters, object $object) {
                 $object->updateExtrafield('control_history_link');
             }
         }
+
+        return 0; // or return 1 to replace standard code
     }
 
 	/**