diff --git a/serviceProto.ts b/serviceProto.ts
index 64ebea9..ac33819 100644
--- a/serviceProto.ts
+++ b/serviceProto.ts
@@ -51,7 +51,7 @@ export interface ServiceType {
 }
 
 export const serviceProto: ServiceProto<ServiceType> = {
-    "version": 2,
+    "version": 3,
     "services": [
         {
             "id": 0,
@@ -214,7 +214,15 @@ export const serviceProto: ServiceProto<ServiceType> = {
             ]
         },
         "room/PtlJoin/ResJoin": {
-            "type": "Number"
+            "type": "Tuple",
+            "elementTypes": [
+                {
+                    "type": "Number"
+                },
+                {
+                    "type": "Number"
+                }
+            ]
         },
         "room/PtlList/ReqList": {
             "type": "Interface",