diff --git a/player/js/module_worker.js b/player/js/module_worker.js
index 5711e5e..4ef3171 100644
--- a/player/js/module_worker.js
+++ b/player/js/module_worker.js
@@ -58,7 +58,7 @@
 
 var animations = [];
 
-var onmessage = function(evt) {
+onmessage = function(evt) {
     var canvas = evt.data.canvas;
     var params = evt.data.params;
     var ctx = canvas.getContext("2d");