diff --git a/www/linux-seamonkey/Makefile.common b/www/linux-seamonkey/Makefile.common
index 36fa877cfedc..ad33afead170 100644
--- a/www/linux-seamonkey/Makefile.common
+++ b/www/linux-seamonkey/Makefile.common
@@ -17,7 +17,7 @@ ONLY_FOR_ARCHS=	i386 amd64
 APP_NAME=	${PKGBASE}
 BIN_NAME?=	${PORTNAME}
 USE_LINUX=	yes
-USE_LINUX_APPS=	atk fontconfig gtk2 hicontheme pango
+USE_LINUX_APPS+=	atk fontconfig gtk2 hicontheme pango
 WRKSRC?=	${WRKDIR}/${BIN_NAME}
 FDIR=		${PREFIX}/lib/${APP_NAME}
 COMMON_DIR=	${.CURDIR}/../../www/linux-seamonkey