diff --git a/macros.js b/macros.js
index 0fab8fb..1ad3832 100644
--- a/macros.js
+++ b/macros.js
@@ -509,6 +509,8 @@ function goForN(n){
 		return;
 	}
 	running = false;
+	var start = document.getElementById('start');
+	var stop = document.getElementById('stop');
 	start.style.visibility = 'visible';
 	stop.style.visibility = 'hidden';
 }