diff --git a/.clang_format.hook b/.clang_format.hook
index 1d92821686..edec286b77 100755
--- a/.clang_format.hook
+++ b/.clang_format.hook
@@ -1,7 +1,7 @@
 #!/bin/bash
 set -e
 
-readonly VERSION="3.8"
+readonly VERSION="7.0"
 
 version=$(clang-format -version)
 
diff --git a/paddle/fluid/operators/detail/sendrecvop_utils.cc b/paddle/fluid/operators/detail/sendrecvop_utils.cc
index f3ac149947..07c43554bc 100644
--- a/paddle/fluid/operators/detail/sendrecvop_utils.cc
+++ b/paddle/fluid/operators/detail/sendrecvop_utils.cc
@@ -162,7 +162,7 @@ void SerializeToByteBuffer(const std::string& name, framework::Variable* var,
   if (var->IsType<ncclUniqueId>()) {
     e.WriteVarlengthBeginning(VarMsg::kSerializedFieldNumber,
                               NCCL_UNIQUE_ID_BYTES);
-    ncclUniqueId& uid = var->Get<ncclUniqueId>();
+    const ncclUniqueId& uid = var->Get<ncclUniqueId>();
     e.WriteRawBytes(std::string(uid.internal, NCCL_UNIQUE_ID_BYTES));
 
     // for serialize NCCL_ID
diff --git a/paddle/fluid/operators/gen_nccl_id_op.cc b/paddle/fluid/operators/gen_nccl_id_op.cc
index 77cd4a460a..6d50bd13e8 100644
--- a/paddle/fluid/operators/gen_nccl_id_op.cc
+++ b/paddle/fluid/operators/gen_nccl_id_op.cc
@@ -23,6 +23,7 @@ limitations under the License. */
 #include "paddle/fluid/framework/threadpool.h"
 #include "paddle/fluid/operators/detail/grpc_client.h"
 #include "paddle/fluid/operators/detail/grpc_server.h"
+#include "paddle/fluid/platform/nccl_helper.h"
 
 namespace paddle {
 namespace operators {