diff --git a/winsup/w32api/ChangeLog b/winsup/w32api/ChangeLog
index e6b819146..3da0c262c 100644
--- a/winsup/w32api/ChangeLog
+++ b/winsup/w32api/ChangeLog
@@ -1,3 +1,10 @@
+2004-02-12  Danny Smith  <dannysmith@users.sourceforge.net>
+
+	* include/basetypes.h (_REFIID_DEFINED): Correct typo.
+
+	* include/winuser.h (NCCALCSIZE_PARAMS): Define structure.
+	Thanks to Mike Nordell <tamlin at algonet dot se>.
+
 2004-02-11  Danny Smith  <dannysmith@users.sourceforge.net>
 
 	* lib/dnsapi.a: New file.
diff --git a/winsup/w32api/include/basetyps.h b/winsup/w32api/include/basetyps.h
index 9f4e604a9..d8cb3c72c 100644
--- a/winsup/w32api/include/basetyps.h
+++ b/winsup/w32api/include/basetyps.h
@@ -140,7 +140,7 @@ typedef unsigned long PROPID;
 #define REFCLSID const CLSID* const
 #endif
 #define _REFGUID_DEFINED
-#define _REFGIID_DEFINED
+#define _REFIID_DEFINED
 #define _REFCLSID_DEFINED
 #endif
 #ifndef GUID_SECTION
diff --git a/winsup/w32api/include/winuser.h b/winsup/w32api/include/winuser.h
index 448e97ccd..2c094c5db 100644
--- a/winsup/w32api/include/winuser.h
+++ b/winsup/w32api/include/winuser.h
@@ -2777,6 +2777,10 @@ typedef struct _WINDOWPOS {
 	int cy;
 	UINT flags;
 } WINDOWPOS,*PWINDOWPOS,*LPWINDOWPOS;
+typedef struct tagNCCALCSIZE_PARAMS {
+	RECT rgrc[3];
+	PWINDOWPOS lppos;
+} NCCALCSIZE_PARAMS, *LPNCCALCSIZE_PARAMS;
 typedef struct tagMDICREATESTRUCTA {
 	LPCSTR szClass;
 	LPCSTR szTitle;