diff --git a/winsup/w32api/ChangeLog b/winsup/w32api/ChangeLog
index 9c08bd882..7a74eb3cf 100644
--- a/winsup/w32api/ChangeLog
+++ b/winsup/w32api/ChangeLog
@@ -1,3 +1,7 @@
+2005-07-18  Daniel Atallah  <datallah@users.sourceforge.net>
+
+	* include/winnt.h (VER_SET_CONDITION): Define.
+
 2005-07-18  Michael Gerdau  <mgdde@users.sourceforge.net>
 
 	* include/wincon.h (AttachConsole): Correct _WIN32_WINNT guard.
diff --git a/winsup/w32api/include/winnt.h b/winsup/w32api/include/winnt.h
index 27c216f13..19ab746db 100644
--- a/winsup/w32api/include/winnt.h
+++ b/winsup/w32api/include/winnt.h
@@ -3349,6 +3349,9 @@ typedef OSVERSIONINFOEXA OSVERSIONINFOEX,*POSVERSIONINFOEX,*LPOSVERSIONINFOEX;
 
 #if (_WIN32_WINNT >= 0x0500)
 ULONGLONG WINAPI VerSetConditionMask(ULONGLONG,DWORD,BYTE);
+#define VER_SET_CONDITION(ConditionMask, TypeBitMask, ComparisonType)  \
+	((ConditionMask) = VerSetConditionMask((ConditionMask), \
+	(TypeBitMask), (ComparisonType)))
 #endif
 
 PVOID GetCurrentFiber(void);