diff --git a/package.json b/package.json
index c3ece64..c2d768d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "colyseus.js",
-  "version": "0.10.1",
+  "version": "0.10.2",
   "description": "Multiplayer Game Client for the Browser",
   "keywords": [
     "colyseus",
diff --git a/src/Room.ts b/src/Room.ts
index f8e1d3f..96a4140 100644
--- a/src/Room.ts
+++ b/src/Room.ts
@@ -141,7 +141,7 @@ export class Room<State= any> {
                     this.serializer = new serializer();
                 }
 
-                if (this.serializer.handshake) {
+                if (view.buffer.byteLength > offset && this.serializer.handshake) {
                     const bytes = Array.from(new Uint8Array(view.buffer.slice(offset)));
                     this.serializer.handshake(bytes);
                 }