diff --git a/modoboa/lib/compat.py b/modoboa/lib/compat.py
deleted file mode 100644
index 00bc93f27..000000000
--- a/modoboa/lib/compat.py
+++ /dev/null
@@ -1,4 +0,0 @@
-from django.conf import settings
-
-user_model_name = getattr(settings, 'AUTH_USER_MODEL', 'auth.User')
-user_table_name = "auth_user" if user_model_name == "auth.User" else "core_user"