diff --git a/include/d3d11sdklayers.idl b/include/d3d11sdklayers.idl
index 638e53ced66..e54ac01b033 100644
--- a/include/d3d11sdklayers.idl
+++ b/include/d3d11sdklayers.idl
@@ -20,6 +20,14 @@ import "oaidl.idl";
 import "ocidl.idl";
 import "d3d11.idl";
 
+const UINT D3D11_DEBUG_FEATURE_FLUSH_PER_RENDER_OP = 0x1;
+const UINT D3D11_DEBUG_FEATURE_FINISH_PER_RENDER_OP = 0x2;
+const UINT D3D11_DEBUG_FEATURE_PRESENT_PER_RENDER_OP = 0x4;
+const UINT D3D11_DEBUG_FEATURE_ALWAYS_DISCARD_OFFERED_RESOURCE = 0x8;
+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;
+
 typedef enum D3D11_MESSAGE_CATEGORY {
     D3D11_MESSAGE_CATEGORY_APPLICATION_DEFINED,
     D3D11_MESSAGE_CATEGORY_MISCELLANEOUS,