diff --git a/taichi/rhi/device.h b/taichi/rhi/device.h
index 8c9202e6449a3..ca4dc5abef5eb 100644
--- a/taichi/rhi/device.h
+++ b/taichi/rhi/device.h
@@ -286,7 +286,7 @@ struct BufferImageCopyParams {
   } image_extent;
   uint32_t image_base_layer{0};
   uint32_t image_layer_count{1};
-  uint32_t image_aspect_flag{0};
+  uint32_t image_aspect_flag{1};
 };
 
 struct ImageCopyParams {
diff --git a/taichi/ui/backends/vulkan/swap_chain.cpp b/taichi/ui/backends/vulkan/swap_chain.cpp
index 86eb3bb2b96e8..387caec0d0526 100644
--- a/taichi/ui/backends/vulkan/swap_chain.cpp
+++ b/taichi/ui/backends/vulkan/swap_chain.cpp
@@ -63,7 +63,7 @@ uint32_t SwapChain::height() {
 taichi::lang::Surface &SwapChain::surface() {
   return *(surface_.get());
 }
-std::vector<float32> &SwapChain::dump_depth_buffer() {
+std::vector<float> &SwapChain::dump_depth_buffer() {
   auto [w, h] = surface_->get_size();
   curr_width_ = w;
   curr_height_ = h;