diff --git a/paddle/operators/nccl/nccl_gpu_common.h b/paddle/operators/nccl/nccl_gpu_common.h
index eead7f79b75789f41a4c0fbe876107e290f4f715..0d71eddf021eab797e5afdbf3996697672f4f5e4 100644
--- a/paddle/operators/nccl/nccl_gpu_common.h
+++ b/paddle/operators/nccl/nccl_gpu_common.h
@@ -34,6 +34,8 @@ struct Communicator {
   std::vector<ncclComm_t> comms_;
   std::unordered_map<int, int> comm_id_map_;
 
+  Communicator() {}
+
   int GetCommId(int device_id) const { return comm_id_map_.at(device_id); }
 
   void InitAll(const std::vector<int>& gpus) {