diff --git a/paddle/fluid/operators/conv_cudnn_helper.h b/paddle/fluid/operators/conv_cudnn_helper.h
index 2ba58a6dae5b355a80caca9f976919d1f56af256..fe0150cca521976e1ff473ec3d83704657f16339 100644
--- a/paddle/fluid/operators/conv_cudnn_helper.h
+++ b/paddle/fluid/operators/conv_cudnn_helper.h
@@ -429,7 +429,7 @@ struct SearchAlgorithm<cudnnConvolutionBwdDataAlgoPerf_t> {
           x_dims, w_dims, args.s, args.p, args.d, 0,
           static_cast<int64_t>(args.cudnn_dtype), [&]() {
             int returned_algo_count;
-            std::array<perf_t, kNUM_CUDNN_FWD_ALGS> perf_stat;
+            std::array<perf_t, kNUM_CUDNN_BWD_DATA_ALGS> perf_stat;
 
             auto cudnn_find_func = [&](void* cudnn_workspace_ptr) {
               PADDLE_ENFORCE_CUDA_SUCCESS(
@@ -561,7 +561,7 @@ struct SearchAlgorithm<cudnnConvolutionBwdFilterAlgoPerf_t> {
             x_dims, w_dims, args.s, args.p, args.d, 0,
             static_cast<int64_t>(args.cudnn_dtype), [&]() {
               int returned_algo_count;
-              std::array<perf_t, kNUM_CUDNN_FWD_ALGS> perf_stat;
+              std::array<perf_t, kNUM_CUDNN_BWD_FILTER_ALGS> perf_stat;
               auto cudnn_find_func = [&](void* cudnn_workspace_ptr) {
                 PADDLE_ENFORCE_CUDA_SUCCESS(
                     platform::dynload::