diff --git a/ckan/migration/env.py b/ckan/migration/env.py
index fe181a6908c..883d6773fba 100644
--- a/ckan/migration/env.py
+++ b/ckan/migration/env.py
@@ -61,7 +61,7 @@ def run_migrations_online():
         poolclass=pool.NullPool
     )
     connection = connectable.connect()
-    init_model(connection)
+    init_model(connectable)
 
     context.configure(connection=connection, target_metadata=target_metadata)