diff --git a/test/socket.io.js b/test/socket.io.js
index <HASH>..<HASH> 100644
--- a/test/socket.io.js
+++ b/test/socket.io.js
@@ -1536,7 +1536,7 @@ describe('socket.io', function(){
     });
 
     it('should handle very large binary data', function(done){
-      this.timeout(10000);
+      this.timeout(30000);
       var srv = http();
       var sio = io(srv, { perMessageDeflate: false });
       var received = 0;
socket.io: increase large binary data test timeout