diff --git a/app.py b/app.py
index de64bd6..fed8060 100644
--- a/app.py
+++ b/app.py
@@ -6,7 +6,7 @@
 
 @app.route('/')
 def hello_world():
-    target = os.environ.get('TARGET', 'World')
+    target = os.environ.get('Hello', 'World')
     return 'Hello {}!\n'.format(target)
 
 if __name__ == "__main__":