diff --git a/drivers/d3d12/rendering_device_driver_d3d12.h b/drivers/d3d12/rendering_device_driver_d3d12.h
index f8aa5ea2a8..d4ed3dfc1d 100644
--- a/drivers/d3d12/rendering_device_driver_d3d12.h
+++ b/drivers/d3d12/rendering_device_driver_d3d12.h
@@ -171,6 +171,7 @@ class RenderingDeviceDriverD3D12 : public RenderingDeviceDriver {
 	MiscFeaturesSupport misc_features_support;
 	MeshShaderCapabilities mesh_shader_capabilities;
 	MiscFeaturesSupport misc_features_support;
+	MeshShaderCapabilities mesh_shader_capabilities;
 	String pipeline_cache_id;
 
 	class DescriptorsHeap {