diff --git a/js/labertasche.js b/js/labertasche.js
index 471fdb0..f7cc592 100644
--- a/js/labertasche.js
+++ b/js/labertasche.js
@@ -36,7 +36,7 @@ function labertasche_callback(state)
 
 // Callback for initiating and cancelling replies.
 // Posstible message: 'on' and 'off'
-function labertasche_reply_callback()
+function labertasche_reply_callback(state)
 {
     if (state === "on"){
     }