diff --git a/winsup/w32api/ChangeLog b/winsup/w32api/ChangeLog
index d8eac3a35..c6ee02618 100644
--- a/winsup/w32api/ChangeLog
+++ b/winsup/w32api/ChangeLog
@@ -1,3 +1,7 @@
+2003-05-14  Bang Jun-Young  <junyoung@netbsd.org>
+
+	* include/winbase.h (GMEM_VALID_FLAGS): Add.
+
 2003-05-13  Danny Smith  <dannysmith@users.sourceforge.net>
 
 	* include/prsht.h (PROPSHEETHEADER[AW]: Mark
diff --git a/winsup/w32api/include/winbase.h b/winsup/w32api/include/winbase.h
index 5b4b37080..afc14e82b 100644
--- a/winsup/w32api/include/winbase.h
+++ b/winsup/w32api/include/winbase.h
@@ -269,6 +269,7 @@ extern "C" {
 #define GMEM_DISCARDED 16384
 #define GMEM_INVALID_HANDLE 32768
 #define GMEM_LOCKCOUNT 255
+#define GMEM_VALID_FLAGS 32626
 #define STATUS_WAIT_0 0
 #define STATUS_ABANDONED_WAIT_0 0x80
 #define STATUS_USER_APC 0xC0