diff --git a/graphmonkey/Makefile b/graphmonkey/Makefile
index 87193871b6..e04eec2927 100644
--- a/graphmonkey/Makefile
+++ b/graphmonkey/Makefile
@@ -28,6 +28,6 @@ post-install:
 	${INSTALL_DATA} ${WRKSRC}/pixmaps/*.png \
 		${DESTDIR}${PREFIX}/share/pixmaps
 
-.include "../../lang/mono2/buildlink3.mk"
+.include "../../lang/mono6/buildlink3.mk"
 .include "../../x11/gtk-sharp/buildlink3.mk"
 .include "../../mk/bsd.pkg.mk"