diff --git a/x11/xfce4-tumbler/Makefile b/x11/xfce4-tumbler/Makefile
index b101e40e199f..e60583ff2531 100644
--- a/x11/xfce4-tumbler/Makefile
+++ b/x11/xfce4-tumbler/Makefile
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.29 2017/09/04 20:20:56 ryoon Exp $
+# $NetBSD: Makefile,v 1.30 2017/10/14 13:36:52 prlw1 Exp $
 #
 #
 
@@ -36,6 +36,7 @@ CFLAGS+=		-g
 
 .include "options.mk"
 
+.include "../../devel/glib2/buildtools.mk"
 .include "../../graphics/freetype2/buildlink3.mk"
 .include "../../graphics/openjpeg/buildlink3.mk"
 .include "../../graphics/png/buildlink3.mk"