diff --git a/biology/generand/Makefile b/biology/generand/Makefile
index 2309b97000fc..5d003f1d64f4 100644
--- a/biology/generand/Makefile
+++ b/biology/generand/Makefile
@@ -1,5 +1,6 @@
 PORTNAME=	generand
 DISTVERSION=	0.1.2
+PORTREVISION=	1
 CATEGORIES=	biology
 
 MAINTAINER=	jwb@FreeBSD.org
@@ -12,6 +13,8 @@ LICENSE_FILE=	${WRKSRC}/LICENSE
 USE_GITHUB=	yes
 GH_ACCOUNT=	auerlab
 
-PLIST_FILES=	bin/generand man/man1/generand.1.gz
+MAKE_ARGS=	MANPREFIX=${PREFIX}/share
+
+PLIST_FILES=	bin/generand share/man/man1/generand.1.gz
 
 .include <bsd.port.mk>