diff --git a/tests/test_auth_token_middleware.py b/tests/test_auth_token_middleware.py
index abce3a377..126a4065b 100644
--- a/tests/test_auth_token_middleware.py
+++ b/tests/test_auth_token_middleware.py
@@ -738,31 +738,31 @@ class CommonAuthTokenMiddlewareTest(object):
             'memcached_servers': ['localhost:11211'],
             'memcache_security_strategy': 'Encrypt'
         }
-        self.assertRaises(Exception, self.set_middleware, conf)
+        self.assertRaises(Exception, self.set_middleware, conf=conf)
         # test invalue memcache_security_strategy
         conf = {
             'memcached_servers': ['localhost:11211'],
             'memcache_security_strategy': 'whatever'
         }
-        self.assertRaises(Exception, self.set_middleware, conf)
+        self.assertRaises(Exception, self.set_middleware, conf=conf)
         # test missing memcache_secret_key
         conf = {
             'memcached_servers': ['localhost:11211'],
             'memcache_security_strategy': 'mac'
         }
-        self.assertRaises(Exception, self.set_middleware, conf)
+        self.assertRaises(Exception, self.set_middleware, conf=conf)
         conf = {
             'memcached_servers': ['localhost:11211'],
             'memcache_security_strategy': 'Encrypt',
             'memcache_secret_key': ''
         }
-        self.assertRaises(Exception, self.set_middleware, conf)
+        self.assertRaises(Exception, self.set_middleware, conf=conf)
         conf = {
             'memcached_servers': ['localhost:11211'],
             'memcache_security_strategy': 'mAc',
             'memcache_secret_key': ''
         }
-        self.assertRaises(Exception, self.set_middleware, conf)
+        self.assertRaises(Exception, self.set_middleware, conf=conf)
 
     def test_config_revocation_cache_timeout(self):
         conf = {