diff --git a/samgr_endpoint/source/default_client.c b/samgr_endpoint/source/default_client.c
index efb19ec..ab17822 100755
--- a/samgr_endpoint/source/default_client.c
+++ b/samgr_endpoint/source/default_client.c
@@ -75,7 +75,7 @@ IUnknown *SAMGR_CreateIProxy(const IpcContext *context, const char *service, con
     header->key.service = service;
     header->key.feature = feature;
     header->context = context;
-    (void)RegisteDeathCallback(context, identity, OnServiceExit, client, &header->deadId);
+    (void)RegisterDeathCallback(context, identity, OnServiceExit, client, &header->deadId);
 
     IClientEntry *entry = &client->entry;
     entry->iUnknown.Invoke = ProxyInvoke;
@@ -179,7 +179,7 @@ static int ProxyInvoke(IClientProxy *proxy, int funcId, IpcIo *request, IOwner o
         if (header->target.handle == INVALID_INDEX) {
             return EC_INVALID;
         }
-        (void)RegisteDeathCallback(header->context, header->target, OnServiceExit, header, &header->deadId);
+        (void)RegisterDeathCallback(header->context, header->target, OnServiceExit, header, &header->deadId);
     }
 
     IpcIo reply;
@@ -187,7 +187,7 @@ static int ProxyInvoke(IClientProxy *proxy, int funcId, IpcIo *request, IOwner o
     IpcFlag flag = (notify == NULL) ? LITEIPC_FLAG_ONEWAY : LITEIPC_FLAG_DEFAULT;
     int ret = Transact(header->context, header->target, funcId, request, &reply, flag, (uintptr_t *)&replyBuf);
     if (ret != LITEIPC_OK) {
-        (void)UnRegisteDeathCallback(header->target, header->deadId);
+        (void)UnregisterDeathCallback(header->target, header->deadId);
         header->deadId = INVALID_INDEX;
         header->target.handle = INVALID_INDEX;
         header->target.token = INVALID_INDEX;
@@ -209,7 +209,7 @@ static int OnServiceExit(const IpcContext *context, void *ipcMsg, IpcIo *data, v
 {
     (void)data;
     IClientHeader *header = (IClientHeader *)argv;
-    (void)UnRegisteDeathCallback(header->target, header->deadId);
+    (void)UnregisterDeathCallback(header->target, header->deadId);
     header->deadId = INVALID_INDEX;
     header->target.handle = INVALID_INDEX;
     header->target.token = INVALID_INDEX;
diff --git a/samgr_endpoint/source/endpoint.c b/samgr_endpoint/source/endpoint.c
index f4d4e60..1c15b4a 100755
--- a/samgr_endpoint/source/endpoint.c
+++ b/samgr_endpoint/source/endpoint.c
@@ -224,8 +224,8 @@ static void *Receive(void *argv)
         ret = endpoint->registerEP(endpoint->context, &endpoint->identity);
         if (ret == EC_SUCCESS) {
             SvcIdentity samgr = {SAMGR_HANDLE, SAMGR_TOKEN, SAMGR_COOKIE};
-            (void)UnRegisteDeathCallback(samgr, endpoint->deadId);
-            (void)RegisteDeathCallback(endpoint->context, samgr, OnSamgrServerExit, endpoint, &endpoint->deadId);
+            (void)UnregisterDeathCallback(samgr, endpoint->deadId);
+            (void)RegisterDeathCallback(endpoint->context, samgr, OnSamgrServerExit, endpoint, &endpoint->deadId);
             break;
         }
         ++retry;
@@ -437,8 +437,8 @@ static int OnSamgrServerExit(const IpcContext *context, void *ipcMsg, IpcIo *dat
     identity.handle = SAMGR_HANDLE;
     identity.token = SAMGR_TOKEN;
     identity.cookie = SAMGR_COOKIE;
-    (void)UnRegisteDeathCallback(identity, endpoint->deadId);
-    (void)RegisteDeathCallback(endpoint->context, identity, OnSamgrServerExit, endpoint, &endpoint->deadId);
+    (void)UnregisterDeathCallback(identity, endpoint->deadId);
+    (void)RegisterDeathCallback(endpoint->context, identity, OnSamgrServerExit, endpoint, &endpoint->deadId);
     int remain = RegisterRemoteFeatures(endpoint);
     HILOG_INFO(HILOG_MODULE_SAMGR, "Reconnect and register finished! remain<%d> iunknown!", remain);
     return EC_SUCCESS;
diff --git a/samgr_server/source/samgr_server.c b/samgr_server/source/samgr_server.c
index 3b580a3..9a81564 100755
--- a/samgr_server/source/samgr_server.c
+++ b/samgr_server/source/samgr_server.c
@@ -197,8 +197,8 @@ static int ProcEndpoint(SamgrServer *server, int32 option, void *origin, IpcIo *
         handle.handle = identity.handle;
         handle.deadId = INVALID_INDEX;
         (void)SASTORA_SaveHandleByPid(&server->store, handle);
-        (void)UnRegisteDeathCallback(identity, handle.deadId);
-        (void)RegisteDeathCallback(server->endpoint->context, identity, OnEndpointExit, (void*)((uintptr_t)pid),
+        (void)UnregisterDeathCallback(identity, handle.deadId);
+        (void)RegisterDeathCallback(server->endpoint->context, identity, OnEndpointExit, (void*)((uintptr_t)pid),
                                    &handle.deadId);
     }
     MUTEX_Unlock(server->mtx);