diff --git a/server/wsproxy/mastermgr.h b/server/wsproxy/mastermgr.h
index 707c404..df2f0be 100644
--- a/server/wsproxy/mastermgr.h
+++ b/server/wsproxy/mastermgr.h
@@ -40,7 +40,6 @@ class MasterMgr : public a8::Singleton<MasterMgr>
     std::shared_ptr<Master> GetConnById(int instance_id);
 
  private:
-    int target_conn_id_ = 100;
     long long curr_context_id_ = 0;
     std::map<int, std::shared_ptr<Master>> mastersvr_hash_;
     std::map<int, long long> pending_socket_hash_;