diff --git a/tox.ini b/tox.ini
index 071ba4f9f..313573fd7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -93,12 +93,11 @@ enable-extensions=H904
 # Ignored extensions, might be enabled again after review:
 # E123 closing bracket does not match indentation of opening bracket's line
 # E226 missing whitespace around arithmetic operator
-# E241 multiple spaces after ','
 # E402 module level import not at top of file
 # E731 do not assign a lambda expression, use a def
 # W503 line break before binary operator
 # W504 line break after binary operator
-ignore = E123,E226,E241,E402,E731,W503,W504
+ignore = E123,E226,E402,E731,W503,W504
 
 [doc8]
 # File extensions to check
diff --git a/zaqar/tests/unit/transport/websocket/v2/test_claims.py b/zaqar/tests/unit/transport/websocket/v2/test_claims.py
index 6faa3d1a1..5646feeab 100644
--- a/zaqar/tests/unit/transport/websocket/v2/test_claims.py
+++ b/zaqar/tests/unit/transport/websocket/v2/test_claims.py
@@ -279,7 +279,7 @@ class ClaimsBaseTest(base.V1_1Base):
         req = test_utils.create_request(action, body, self.headers)
         self.protocol.onMessage(req, False)
         resp = jsonutils.loads(send_mock.call_args[0][0])
-        self.assertEqual(403,  resp['headers']['status'])
+        self.assertEqual(403, resp['headers']['status'])
 
         # Delete the message and its associated claim
         body = {"queue_name": "skittle",
@@ -303,7 +303,7 @@ class ClaimsBaseTest(base.V1_1Base):
         req = test_utils.create_request(action, body, headers)
         self.protocol.onMessage(req, False)
         resp = jsonutils.loads(send_mock.call_args[0][0])
-        self.assertEqual(404,  resp['headers']['status'])
+        self.assertEqual(404, resp['headers']['status'])
 
         # Get the message
         action = consts.MESSAGE_GET
@@ -382,7 +382,7 @@ class ClaimsBaseTest(base.V1_1Base):
         req = test_utils.create_request(action, body, self.headers)
         self.protocol.onMessage(req, False)
         resp = jsonutils.loads(send_mock.call_args[0][0])
-        self.assertEqual(404,  resp['headers']['status'])
+        self.assertEqual(404, resp['headers']['status'])
 
         # Try to update a claim that doesn't exist
         action = consts.CLAIM_UPDATE
@@ -393,7 +393,7 @@ class ClaimsBaseTest(base.V1_1Base):
         req = test_utils.create_request(action, body, self.headers)
         self.protocol.onMessage(req, False)
         resp = jsonutils.loads(send_mock.call_args[0][0])
-        self.assertEqual(404,  resp['headers']['status'])
+        self.assertEqual(404, resp['headers']['status'])
 
     def test_post_claim_nonexistent_queue(self):
         action = consts.CLAIM_CREATE
@@ -420,7 +420,7 @@ class ClaimsBaseTest(base.V1_1Base):
         req = test_utils.create_request(action, body, self.headers)
         self.protocol.onMessage(req, False)
         resp = jsonutils.loads(send_mock.call_args[0][0])
-        self.assertEqual(404,  resp['headers']['status'])
+        self.assertEqual(404, resp['headers']['status'])
 
     def _get_a_claim(self):
         action = consts.CLAIM_CREATE
diff --git a/zaqar/tests/unit/transport/wsgi/v2_0/test_queue_lifecycle.py b/zaqar/tests/unit/transport/wsgi/v2_0/test_queue_lifecycle.py
index b695a32be..28408adb0 100644
--- a/zaqar/tests/unit/transport/wsgi/v2_0/test_queue_lifecycle.py
+++ b/zaqar/tests/unit/transport/wsgi/v2_0/test_queue_lifecycle.py
@@ -504,7 +504,7 @@ class TestQueueLifecycleMongoDB(base.V2Base):
                           '_dead_letter_queue': None,
                           '_dead_letter_queue_messages_ttl': None,
                           '_max_claim_count': None,
-                          '_enable_encrypt_messages': False},  result_doc)
+                          '_enable_encrypt_messages': False}, result_doc)
 
         # queue filter
         result = self.simulate_get(self.queue_path, headers=header,
diff --git a/zaqar/tests/unit/transport/wsgi/v2_0/test_topic_lifecycle.py b/zaqar/tests/unit/transport/wsgi/v2_0/test_topic_lifecycle.py
index fc7882c49..a3b1bb148 100644
--- a/zaqar/tests/unit/transport/wsgi/v2_0/test_topic_lifecycle.py
+++ b/zaqar/tests/unit/transport/wsgi/v2_0/test_topic_lifecycle.py
@@ -480,7 +480,7 @@ class TestTopicLifecycleMongoDB(base.V2Base):
         self.assertEqual(topic['metadata'], result_doc)
         self.assertEqual({'node': 31, '_default_message_ttl': 3600,
                           '_max_messages_post_size': 262144,
-                          '_default_message_delay': 0},  result_doc)
+                          '_default_message_delay': 0}, result_doc)
 
         # topic filter
         result = self.simulate_get(self.topic_path, headers=header,