diff --git a/frontends/ycdl_flask/backend/common.py b/frontends/ycdl_flask/backend/common.py
index a109cae..c7b23fb 100644
--- a/frontends/ycdl_flask/backend/common.py
+++ b/frontends/ycdl_flask/backend/common.py
@@ -41,8 +41,7 @@ site.localhost_only = False
 
 @site.before_request
 def before_request():
-    ip = request.remote_addr
-    request.is_localhost = ip == '127.0.0.1'
+    request.is_localhost = (request.remote_addr == '127.0.0.1')
     if site.localhost_only and not request.is_localhost:
         flask.abort(403)