diff --git a/lite/kernels/host/multiclass_nms_compute.cc b/lite/kernels/host/multiclass_nms_compute.cc
index 9f4c2fb6f53c17f97cb9a1aaeecd493713899cab..17c8cfd9fe0e40c59441b40d29f7803d5e8aa3fe 100644
--- a/lite/kernels/host/multiclass_nms_compute.cc
+++ b/lite/kernels/host/multiclass_nms_compute.cc
@@ -369,6 +369,7 @@ void MulticlassNmsCompute::Run() {
     }
   } else {
     outs->Resize({static_cast<int64_t>(num_kept), out_dim});
+    (void)outs->mutable_data<float>();
     int offset = 0;
     int* oindices = nullptr;
     for (int i = 0; i < n; ++i) {