diff --git a/examples/mat-put.js b/examples/mat-put.js
index 5f740a3..05462b5 100644
--- a/examples/mat-put.js
+++ b/examples/mat-put.js
@@ -6,9 +6,11 @@ for(var i=0;i<256*256;i++){
   buf[i] = (i%2===1)?230:0;
 }
 mat.put(buf);
+/*
 var window = new opencv.NamedWindow('Mat-Put', 0);
 window.show(mat);
 window.blockingWaitKey(0, 50);
 setTimeout(function(){
   // keep the windows 30sec open
 },30000);
+*/