diff --git a/server.js b/server.js
index 1c1917d..6ba51a7 100644
--- a/server.js
+++ b/server.js
@@ -118,7 +118,7 @@ function Server (opts) {
         })
       })
     }
-    self.ws = new WebSocketServer({ server: self.http })
+    self.ws = new WebSocketServer({ server: self.http, perMessageDeflate: false })
     self.ws.address = function () {
       return self.http.address()
     }