diff --git a/data/protocol.json b/data/protocol.json
index 33322c2..1fb41b9 100644
--- a/data/protocol.json
+++ b/data/protocol.json
@@ -783,7 +783,7 @@
                     "type":[
                         "buffer",
                         {
-                            "countType":"i32"
+                            "countType":"i8"
                         }
                     ]
                 }