diff --git a/devel/rhtvision/Makefile b/devel/rhtvision/Makefile
index 1aa94bb1fe61..5a3ab5159e7e 100644
--- a/devel/rhtvision/Makefile
+++ b/devel/rhtvision/Makefile
@@ -36,7 +36,7 @@ PLIST_SUB=	VERSION="${PORTVERSION:R}"
 NLS_USES=		gettext
 NLS_CONFIGURE_OFF=	--no-intl
 
-X11_USES		xorg
+X11_USES=		xorg
 X11_USE=		XORG=x11,xmu
 X11_CONFIGURE_ON=	--x-include=${LOCALBASE}/include \
 			--x-lib=${LOCALBASE}/lib