diff --git a/devel/libayatana-indicator/Makefile b/devel/libayatana-indicator/Makefile
index dcf41902fabd..266301e92b71 100644
--- a/devel/libayatana-indicator/Makefile
+++ b/devel/libayatana-indicator/Makefile
@@ -1,39 +1,40 @@
 PORTNAME=	libayatana-indicator
 PORTVERSION=	0.9.4
 PORTREVISION=	2
 CATEGORIES=	devel
 
 MAINTAINER=	jgh@FreeBSD.org
 COMMENT=	Ayatana Indicators Shared Library
 WWW=		https://github.com/AyatanaIndicators/libayatana-indicator
 
 LICENSE=	GPLv3
 
 LIB_DEPENDS=	libayatana-ido3-0.4.so:devel/ayatana-ido \
 		libgtest.so:devel/googletest \
 		libharfbuzz.so:print/harfbuzz
 BUILD_DEPENDS=	lcov>=0:devel/lcov
 
 USES=		cmake gnome localbase:ldflags pkgconfig vala:build
 
 USE_GNOME=	atk cairo gdkpixbuf2 glib20 gtk30 introspection pango
 
 USE_LDCONFIG=	yes
+LDFLAGS+=	-pthread
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	AyatanaIndicators
 
 PORTDOCS=	AUTHORS COPYING ChangeLog NEWS README.md
 OPTIONS_DEFINE=	DOCS
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/libayatana-indicator3.so*
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/libexec/libayatana-indicator/ayatana-indicator-loader3
 
 post-install-DOCS-on:
 	${MKDIR} ${STAGEDIR}${DOCSDIR}
 .for doc in ${PORTDOCS}
 	${INSTALL_DATA} ${WRKSRC}/${doc} ${STAGEDIR}${DOCSDIR}
 .endfor
 
 .include <bsd.port.mk>