diff --git a/interfaces/innerkits/ipc_core/include/ipc_object_proxy.h b/interfaces/innerkits/ipc_core/include/ipc_object_proxy.h
index 4e9768c4..966af576 100644
--- a/interfaces/innerkits/ipc_core/include/ipc_object_proxy.h
+++ b/interfaces/innerkits/ipc_core/include/ipc_object_proxy.h
@@ -350,6 +350,7 @@ private:
 private:
     std::mutex initMutex_;
     std::recursive_mutex mutex_;
+    std::mutex descMutex_;
 
     std::vector<sptr<DeathRecipient>> recipients_;
     const uint32_t handle_;