diff --git a/core/src/server/grpc_impl/GrpcRequestHandler.cpp b/core/src/server/grpc_impl/GrpcRequestHandler.cpp
index 1915c0bd8e..5bcbc8b9a1 100644
--- a/core/src/server/grpc_impl/GrpcRequestHandler.cpp
+++ b/core/src/server/grpc_impl/GrpcRequestHandler.cpp
@@ -1269,7 +1269,7 @@ GrpcRequestHandler::Flush(::grpc::ServerContext* context, const ::milvus::grpc::
 }
 
 ::grpc::Status
-GrpcRequestHandler::Compact(::grpc::ServerContext* context, ::milvus::grpc::CompactParam* request,
+GrpcRequestHandler::Compact(::grpc::ServerContext* context, const ::milvus::grpc::CompactParam* request,
                             ::milvus::grpc::Status* response) {
     CHECK_NULLPTR_RETURN(request);
     LOG_SERVER_INFO_ << LogOut("Request [%s] %s begin.", GetContext(context)->ReqID().c_str(), __func__);
diff --git a/core/src/server/grpc_impl/GrpcRequestHandler.h b/core/src/server/grpc_impl/GrpcRequestHandler.h
index f3901958fa..f021cd50c2 100644
--- a/core/src/server/grpc_impl/GrpcRequestHandler.h
+++ b/core/src/server/grpc_impl/GrpcRequestHandler.h
@@ -304,7 +304,8 @@ class GrpcRequestHandler final : public ::milvus::grpc::MilvusService::Service,
     //
     // @return Status
     ::grpc::Status
-    Compact(::grpc::ServerContext* context, ::milvus::grpc::CompactParam* request, ::milvus::grpc::Status* response);
+    Compact(::grpc::ServerContext* context, const ::milvus::grpc::CompactParam* request,
+            ::milvus::grpc::Status* response) override;
 
     /*******************************************New Interface*********************************************/