diff --git a/include/luisa/runtime/byte_buffer.h b/include/luisa/runtime/byte_buffer.h
index c42101ca9..e690f9196 100644
--- a/include/luisa/runtime/byte_buffer.h
+++ b/include/luisa/runtime/byte_buffer.h
@@ -61,7 +61,7 @@ class LC_RUNTIME_API ByteBuffer final : public Resource {
     }
 };
 
-class ByteBufferView {
+class LC_RUNTIME_API ByteBufferView {
     friend class lc::validation::Stream;
 
 private: