diff --git a/tox.ini b/tox.ini
index d33533147..e1602cc1b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -47,6 +47,7 @@ commands =
     oslo-config-generator --config-file etc/watcher/oslo-config-generator/watcher.conf
 
 [flake8]
+filename = *.py,app.wsgi
 show-source=True
 ignore= H105,E123,E226,N320,H202
 builtins= _
diff --git a/watcher/api/app.wsgi b/watcher/api/app.wsgi
index c2b0609ae..d5ca405f0 100644
--- a/watcher/api/app.wsgi
+++ b/watcher/api/app.wsgi
@@ -37,4 +37,3 @@ LOG.debug("Configuration:")
 CONF.log_opt_values(LOG, log.DEBUG)
 
 application = app.VersionSelectorApplication()
-