diff --git a/inc/fields/dropdownfield.class.php b/inc/fields/dropdownfield.class.php
index 06b117abf..a13ac03d0 100644
--- a/inc/fields/dropdownfield.class.php
+++ b/inc/fields/dropdownfield.class.php
@@ -489,7 +489,7 @@ private function getMyGroups($userID) {
             ],
          ],
          'WHERE' => [
-            $groupUser . '.id' => $userID,
+            $groupUserTable . '.id' => $userID,
          ] + $dbUtil->getEntitiesRestrictCriteria(
             $groupTable,
             '',