diff --git a/include/d2d1.idl b/include/d2d1.idl
index c9fb8f0b6bc..08487fa6b0f 100644
--- a/include/d2d1.idl
+++ b/include/d2d1.idl
@@ -274,8 +274,8 @@ typedef enum D2D1_FEATURE_LEVEL
 
 typedef enum D2D1_WINDOW_STATE
 {
-    D2D1_WINDOW_STATE_NONE = 0x0000000,
-    D2D1_WINDOW_STATE_OCCLUDED = 0x0000001,
+    D2D1_WINDOW_STATE_NONE = 0,
+    D2D1_WINDOW_STATE_OCCLUDED = 1,
     D2D1_WINDOW_STATE_FORCE_DWORD = 0xffffffff,
 } D2D1_WINDOW_STATE;