diff --git a/reactos/w32api/include/ddk/ddrawint.h b/reactos/w32api/include/ddk/ddrawint.h
index 66f3667a6d2..d049998e964 100644
--- a/reactos/w32api/include/ddk/ddrawint.h
+++ b/reactos/w32api/include/ddk/ddrawint.h
@@ -480,6 +480,8 @@ typedef struct
 typedef DWORD (STDCALL *PDD_MAPMEMORY)(PDD_MAPMEMORYDATA);
 
 
+typedef struct _DD_DESTROYDRIVERDATA *PDD_DESTROYDRIVERDATA;
+typedef struct _DD_SETMODEDATA *PDD_SETMODEDATA;
 
 typedef DWORD   (APIENTRY *PDD_DESTROYDRIVER)(PDD_DESTROYDRIVERDATA);
 typedef DWORD   (APIENTRY *PDD_SETMODE)(PDD_SETMODEDATA);