diff --git a/service/clusteragent.lua b/service/clusteragent.lua
index 0f0d3ec4..c59d5aa5 100644
--- a/service/clusteragent.lua
+++ b/service/clusteragent.lua
@@ -42,6 +42,12 @@ end
 
 local register_name = new_register_name()
 
+local function new_register_name()
+	return setmetatable({}, register_name_mt)
+end
+
+local register_name = new_register_name()
+
 local tracetag
 
 local function dispatch_request(_,_,addr, session, msg, sz, padding, is_push)