diff --git a/src/tjts5901/app.py b/src/tjts5901/app.py
index 5f19190db86c72d13c21c0149bc88f67660f1133..e7297a546aad7428e809c320e37e8082c64e00bc 100644
--- a/src/tjts5901/app.py
+++ b/src/tjts5901/app.py
@@ -87,7 +87,7 @@ app = create_app()
 
 
 # a simple page that says hello
-@flask_app.route('/hello')
+@app.route('/hello')
 def hello():
     return _('Hello, World!')