diff --git a/falcon_helpers/middlewares/sqla.py b/falcon_helpers/middlewares/sqla.py
index 8ff3d64..6d343c6 100644
--- a/falcon_helpers/middlewares/sqla.py
+++ b/falcon_helpers/middlewares/sqla.py
@@ -9,7 +9,7 @@ def process_resource(self, req, resp, resource, params):
         resource.session = self.session
 
     def process_response(self, req, resp, resource, req_succeeded):
-        if not hasattr(resource, 'session'):
+        if not self.session:
             return
 
         try: