diff --git a/heat/api/cloudwatch/__init__.py b/heat/api/cloudwatch/__init__.py
index 750c8155e1..f8567bd085 100644
--- a/heat/api/cloudwatch/__init__.py
+++ b/heat/api/cloudwatch/__init__.py
@@ -53,8 +53,6 @@ class API(wsgi.Router):
 
     def __init__(self, conf, **local_conf):
         self.conf = conf
-        mapper = routes.Mapper()
-
         mapper = routes.Mapper()
         controller_resource = watch.create_resource(conf)