diff --git a/shells/modernish/Makefile b/shells/modernish/Makefile
index 9c9a1e4958b7..096f3e312a7c 100644
--- a/shells/modernish/Makefile
+++ b/shells/modernish/Makefile
@@ -1,28 +1,33 @@
 PORTNAME=	modernish
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.16.5
 CATEGORIES=	shells
 
 MAINTAINER=	0mp@FreeBSD.org
 COMMENT=	POSIX shell feature detection and language extension library
 
 LICENSE=	ISCL
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USE_GITHUB=	yes
 
 NO_ARCH=	yes
 NO_BUILD=	yes
 
 OPTIONS_DEFINE=	DOCS EXAMPLES
 
+post-extract:
+	${MV} ${WRKSRC}/lib/modernish/cap/BUG_DEVTTY.t ${WRKDIR}
+
 do-install:
 	cd ${WRKSRC} && \
 	${SETENV} ${MAKE_ENV} ${SH} -x ./install.sh -d ${PREFIX} -D ${STAGEDIR} -n -s ${SH}
 
+	${MV} ${WRKDIR}/BUG_DEVTTY.t ${STAGEDIR}${PREFIX}/lib/modernish/cap/BUG_DEVTTY.t
+
 	${RM} ${STAGEDIR}${DOCSDIR}/LICENSE
 	${MKDIR} ${STAGEDIR}${EXAMPLESDIR:H}
 	${MV} ${STAGEDIR}${DOCSDIR}/examples ${STAGEDIR}${EXAMPLESDIR}
 	${RLN} ${STAGEDIR}${EXAMPLESDIR} ${STAGEDIR}${DOCSDIR}/examples
 
 .include <bsd.port.mk>