diff --git a/webapp/app.py b/webapp/app.py
index 0d9dfa5..169f7f1 100644
--- a/webapp/app.py
+++ b/webapp/app.py
@@ -23,7 +23,7 @@ def login():
 def do_login():
     name = request.form.get('user_name')
     session['user_name'] = name
-    return 'Hello,'+session['user_name']+'!'
+    return 'Hello, '+session['user_name']+' !'
  
  
 @app.route('/logout')