Index: head/math/gnome-calculator/Makefile
===================================================================
--- head/math/gnome-calculator/Makefile	(revision 558929)
+++ head/math/gnome-calculator/Makefile	(revision 558930)
@@ -1,32 +1,33 @@
 # Created by: Gustau Perez i Querol <gustau.perez@gmail.com>
 # $FreeBSD$
 
 PORTNAME=	gnome-calculator
 PORTVERSION=	3.38.2
+PORTREVISION=	1
 CATEGORIES=	math gnome
 MASTER_SITES=	GNOME
 DIST_SUBDIR=	gnome
 
 MAINTAINER=	gnome@FreeBSD.org
 COMMENT=	GNOME 3 calculator tool
 
 LICENSE=	GPLv3+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	vala:lang/vala \
 		itstool:textproc/itstool
 LIB_DEPENDS=	libmpfr.so:math/mpfr \
 		libmpc.so:math/mpc \
 		libsoup-2.4.so:devel/libsoup \
 		libgee-0.8.so:devel/libgee
 
 PORTSCOUT=	limitw:1,even
 
 USES=		compiler:c11 gettext gnome localbase:ldflags meson \
 		pkgconfig python:3.6+,build tar:xz
-USE_GNOME=	gtksourceview4 libxml2
+USE_GNOME=	gtksourceview4 introspection libxml2
 BINARY_ALIAS=	python3=${PYTHON_VERSION}
 
 GLIB_SCHEMAS=	org.gnome.calculator.gschema.xml
 
 .include <bsd.port.mk>