diff --git a/zaqar/tests/tempest_plugin/services/messaging/json/messaging_client.py b/zaqar/tests/tempest_plugin/services/messaging/json/messaging_client.py
index 919a12a..08e9ed4 100644
--- a/zaqar/tests/tempest_plugin/services/messaging/json/messaging_client.py
+++ b/zaqar/tests/tempest_plugin/services/messaging/json/messaging_client.py
@@ -187,9 +187,6 @@ class V11MessagingClient(MessagingClient):
         self.version = '1.1'
         self.uri_prefix = 'v{0}'.format(self.version)
 
-        client_id = uuid.uuid4().hex
-        self.headers = {'Client-ID': client_id}
-
     def list_queues(self):
         uri = '{0}/queues'.format(self.uri_prefix)
         resp, body = self.get(uri, headers=self.headers)
@@ -326,9 +323,6 @@ class V2MessagingClient(MessagingClient):
         self.version = '2'
         self.uri_prefix = 'v{0}'.format(self.version)
 
-        client_id = uuid.uuid4().hex
-        self.headers = {'Client-ID': client_id}
-
     def list_queues(self, url_params=False):
         uri = '{0}/queues'.format(self.uri_prefix)
         if url_params: