diff --git a/include/ddraw.h b/include/ddraw.h
index dac90fc19d0ec3455544211c4df04209a407e1b7..dba5a3102c3b8779667896de2b431ad571e7f897 100644
--- a/include/ddraw.h
+++ b/include/ddraw.h
@@ -1,7 +1,7 @@
 #ifndef __WINE_DDRAW_H
 #define __WINE_DDRAW_H
 
-#include "winnt.h" /* LARGE_INTEGER ... */
+#include "windef.h" /* LARGE_INTEGER ... */
 #include "wingdi.h" /* PALETTE stuff ... */
 #include "wine/obj_base.h"
 
diff --git a/include/winbase.h b/include/winbase.h
index fc58e603837c455da6c8dbf96b9bc7506a2d7c88..e7e6c8161d147e765cab481daae8922dbd35b04c 100644
--- a/include/winbase.h
+++ b/include/winbase.h
@@ -6,7 +6,7 @@
 #endif
 
 #include "basetsd.h"
-#include "winnt.h"
+#include "windef.h"
 #include "pshpack1.h"
 
 #ifndef RC_INVOKED
diff --git a/server/snapshot.c b/server/snapshot.c
index 3f806bee9cc6bc37c5d5b53825405e466cf3e72e..0a690eb8eb1ac8cdbbfd5c57e177a490254ae44e 100644
--- a/server/snapshot.c
+++ b/server/snapshot.c
@@ -10,7 +10,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "winnt.h"
+#include "windef.h"
 #include "tlhelp32.h"
 
 #include "handle.h"