diff --git a/sapl/legacy/router.py b/sapl/legacy/router.py
index 68b235059..1aa51a46b 100644
--- a/sapl/legacy/router.py
+++ b/sapl/legacy/router.py
@@ -16,7 +16,7 @@ class LegacyRouter:
             return True
         return None
 
-    def allow_migrate(self, db, model):
-        if model._meta.app_label == 'legacy':
+    def allow_migrate(self, db, app_label, model_name=None, **hints):
+        if app_label == 'legacy':
             return False
         return None