diff --git a/harbour/contrib/hgf/win32/button.prg b/harbour/contrib/hgf/win32/button.prg
index 3b154ae378..a8378c7c4f 100644
--- a/harbour/contrib/hgf/win32/button.prg
+++ b/harbour/contrib/hgf/win32/button.prg
@@ -53,9 +53,7 @@
 
 #include "common.ch"
 #include "hbclass.ch"
-
-#define WS_CHILD     0x40000000
-#define WS_TABSTOP   0x00010000
+#include "win32.ch"
 
 CLASS HBButton FROM HBWinControl