diff --git a/lib/apiaction.php b/lib/apiaction.php
index e6aaf93161..9fc1a07799 100644
--- a/lib/apiaction.php
+++ b/lib/apiaction.php
@@ -1273,7 +1273,7 @@ class ApiAction extends Action
                 if (empty($local)) {
                     return null;
                 } else {
-                    return User_group::staticGet('id', $local->id);
+                    return User_group::staticGet('id', $local->group_id);
                 }
             }