diff --git a/bricks/utils.js b/bricks/utils.js
index 83641c7..1636250 100755
--- a/bricks/utils.js
+++ b/bricks/utils.js
@@ -281,7 +281,7 @@ var objcopy = function(obj){
     return o;
 }
 
-var bricks.playResponseAudio = async function(response, target){
+bricks.playResponseAudio = async function(response, target){
 	var widget = null;
 	if (response.status != 200){
 		console.log('playResponseAudio(): response.status != 200', response.status);