diff --git a/lib/Client/InternalClient.js b/lib/Client/InternalClient.js
index f7ea63d3e..05828d825 100644
--- a/lib/Client/InternalClient.js
+++ b/lib/Client/InternalClient.js
@@ -1165,7 +1165,7 @@ var InternalClient = (function () {
 		};
 
 		this.websocket.onmessage = function (e) {
-			if (e.type === "Binary") {
+			if (e.data instanceof Buffer) {
 				if (!zlib) zlib = require("zlib");
 				e.data = zlib.inflateSync(e.data).toString();
 			}
diff --git a/src/Client/InternalClient.js b/src/Client/InternalClient.js
index 243f71f38..17db601ba 100644
--- a/src/Client/InternalClient.js
+++ b/src/Client/InternalClient.js
@@ -1055,7 +1055,7 @@ export default class InternalClient {
 		};
 
 		this.websocket.onmessage = e => {
-			if (e.type === "Binary") {
+			if (e.data instanceof Buffer) {
 				if (!zlib) zlib = require("zlib");
 				e.data = zlib.inflateSync(e.data).toString();
 			}