diff --git a/examples/vision/classification/paddleclas/cpp/infer.cc b/examples/vision/classification/paddleclas/cpp/infer.cc
index 1f0376775..8e9b1559d 100644
--- a/examples/vision/classification/paddleclas/cpp/infer.cc
+++ b/examples/vision/classification/paddleclas/cpp/infer.cc
@@ -77,8 +77,6 @@ void TrtInfer(const std::string& model_dir, const std::string& image_file) {
   auto option = fastdeploy::RuntimeOption();
   option.UseGpu();
   option.UseTrtBackend();
-  option.SetTrtInputShape("inputs", {1, 3, 224, 224}, {1, 3, 224, 224},
-                          {1, 3, 224, 224});
   auto model = fastdeploy::vision::classification::PaddleClasModel(
       model_file, params_file, config_file, option);
   if (!model.Initialized()) {