diff --git a/rtv/main.py b/rtv/main.py
index c953d3d..f59f4ec 100644
--- a/rtv/main.py
+++ b/rtv/main.py
@@ -96,7 +96,7 @@ def main():
                 page.loop()
 
     except InvalidUserPass:
-        print('Invalid password for username: ' + args.username)
+        print('Invalid password for username: {}'.format(args.username)) 
 
     except KeyboardInterrupt:
         return