diff --git a/api/kiwi_vpn_api/routers/admin.py b/api/kiwi_vpn_api/routers/admin.py
index b43f1ae..609edb7 100644
--- a/api/kiwi_vpn_api/routers/admin.py
+++ b/api/kiwi_vpn_api/routers/admin.py
@@ -63,7 +63,7 @@ async def create_initial_admin(
             raise HTTPException(status_code=status.HTTP_409_CONFLICT)
 
     # create an administrative user
-    new_user = User.create(admin_user)
+    new_user = User.create(user=admin_user)
     new_user.set_capabilities([UserCapabilityType.admin])
     new_user.update()