Index: head/x11-wm/ctwm/Makefile
===================================================================
--- head/x11-wm/ctwm/Makefile	(revision 558733)
+++ head/x11-wm/ctwm/Makefile	(revision 558734)
@@ -1,21 +1,26 @@
 # Created by: torstenb
 # $FreeBSD$
 
 PORTNAME=	ctwm
 DISTVERSION=	4.0.3
 PORTEPOCH=	1
 CATEGORIES=	x11-wm
 MASTER_SITES=	https://www.ctwm.org/dist/ \
 		https://distfiles.over-yonder.net/ctwm/
 
 MAINTAINER=	fullermd@over-yonder.net
 COMMENT=	Extension to twm, with support for multiple virtual screens
 
 LICENSE=	MIT
 
 USES=		cmake jpeg tar:xz xorg
 USE_XORG=	x11 xext xt ice sm xpm xmu
 
 OPTIONS_DEFINE=	DOCS EXAMPLES
 
+# mtree isn't run in poudriere, so /usr/local/ isn't all setup like it
+# should be, so we have to force this
+CMAKE_ARGS=	-DMANDIR:STRING="${PREFIX}/share/man"
+
+
 .include <bsd.port.mk>