diff --git a/misc/sdformat/Makefile b/misc/sdformat/Makefile
index 313dfea6d470..2f6cea54cc9b 100644
--- a/misc/sdformat/Makefile
+++ b/misc/sdformat/Makefile
@@ -1,39 +1,40 @@
 PORTNAME=	sdformat
 DISTVERSION=	8.0.0
 PORTREVISION=	4
 CATEGORIES=	misc
 MASTER_SITES=	https://bitbucket.org/${BB_ACCOUNT}/${BB_PROJECT}/get/${BB_COMMIT}.tar.gz?dummy=/
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Simulation Description Format (SDF) parser and description files
 
 LICENSE=	APACHE20
 
 BUILD_DEPENDS=	ignition-cmake==2:devel/ignition-cmake \
-		ignition-tools>0:devel/ignition-tools
+		ignition-tools>0:devel/ignition-tools \
+		rubygem-rexml>0:textproc/rubygem-rexml
 LIB_DEPENDS=	libignition-math6.so:math/ignition-math \
 		libconsole_bridge.so:devel/ros-console_bridge \
 		libtinyxml2.so:textproc/tinyxml2 \
 		liburdfdom_world.so:devel/ros-urdfdom
 RUN_DEPENDS=	ignition-tools>0:devel/ignition-tools
 
 USES=		cmake compiler:c++17-lang pkgconfig
 USE_LDCONFIG=	yes
 
 CMAKE_OFF=	BUILD_TESTING
 
 BB_ACCOUNT=	osrf
 BB_PROJECT=	${PORTNAME}
 BB_COMMIT=	f555f9a69f8f
 
 WRKSRC=		${WRKDIR}/${BB_ACCOUNT}-${BB_PROJECT}-${BB_COMMIT}
 
 PLIST_SUB+=	INCSUBDIR=${PORTNAME}-${DISTVERSION:R}
 
 do-test:
 	@cd ${BUILD_WRKSRC} && \
 		${SETENV} ${CONFIGURE_ENV} ${CMAKE_BIN} ${CMAKE_ARGS} -DBUILD_TESTING:BOOL=ON ${CMAKE_SOURCE_PATH} && \
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} ${ALL_TARGET} && \
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} test
 
 .include <bsd.port.mk>