diff --git a/static/js/components/app-main/index.js b/static/js/components/app-main/index.js
index a341fe0..5615f4d 100644
--- a/static/js/components/app-main/index.js
+++ b/static/js/components/app-main/index.js
@@ -53,7 +53,6 @@ function scroll(xterm, parent){
  * @param xtermNode
  */
 function createXTerm(name, xtermNode){
-  var timer;
   var runtime = window.AppRuntime[name];
 
   if (runtime) {