diff --git a/include/d3d11sdklayers.idl b/include/d3d11sdklayers.idl
index 54236fcdac7..843e97860d9 100644
--- a/include/d3d11sdklayers.idl
+++ b/include/d3d11sdklayers.idl
@@ -28,6 +28,8 @@ const UINT D3D11_DEBUG_FEATURE_NEVER_DISCARD_OFFERED_RESOURCE = 0x10;
 const UINT D3D11_DEBUG_FEATURE_AVOID_BEHAVIOR_CHANGING_DEBUG_AIDS = 0x40;
 const UINT D3D11_DEBUG_FEATURE_DISABLE_TILED_RESOURCE_MAPPING_TRACKING_AND_VALIDATION = 0x80;
 
+cpp_quote("DEFINE_GUID(DXGI_DEBUG_D3D11, 0x4b99317b, 0xac39, 0x4aa6, 0xbb, 0xb, 0xba, 0xa0, 0x47, 0x84, 0x79, 0x8f);")
+
 typedef enum D3D11_MESSAGE_CATEGORY {
     D3D11_MESSAGE_CATEGORY_APPLICATION_DEFINED,
     D3D11_MESSAGE_CATEGORY_MISCELLANEOUS,