diff --git a/miniwin/src/internal/d3drmobject_impl.h b/miniwin/src/internal/d3drmobject_impl.h
index 16fcd8bf..c453b3fa 100644
--- a/miniwin/src/internal/d3drmobject_impl.h
+++ b/miniwin/src/internal/d3drmobject_impl.h
@@ -64,8 +64,9 @@ struct Direct3DRMObjectBaseImpl : public T {
 		return D3DRM_OK;
 	}
 
-private:
+protected:
 	std::vector<std::pair<D3DRMOBJECTCALLBACK, void*>> m_callbacks;
+private:
 	LPD3DRM_APPDATA m_appData = nullptr;
 	char* m_name = nullptr;
 };