diff --git a/appengine/mailjet/main.py b/appengine/mailjet/main.py
index ccad22a53cc..122a1edb09d 100644
--- a/appengine/mailjet/main.py
+++ b/appengine/mailjet/main.py
@@ -17,7 +17,7 @@
 import os
 
 from flask import Flask, render_template, request
-# [start config]
+# [START config]
 import mailjet_rest
 import requests_toolbelt.adapters.appengine