diff --git a/lib/protocol.js b/lib/protocol.js
index 46725f1..c882a22 100644
--- a/lib/protocol.js
+++ b/lib/protocol.js
@@ -95,7 +95,7 @@ var packets = {
     { name: "x", type: "int" },
     { name: "y", type: "byte" },
     { name: "z", type: "int" },
-    { name: "face", type: "byte" }
+    { name: "face", type: "ubyte" }
   ],
   0x0f: [
     { name: "x", type: "int" },