diff --git a/accessibility/rubygem-atk/Makefile b/accessibility/rubygem-atk/Makefile
index 2b59aadc78b2..26a81d955cbb 100644
--- a/accessibility/rubygem-atk/Makefile
+++ b/accessibility/rubygem-atk/Makefile
@@ -9,6 +9,7 @@ MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Ruby binding for ATK
 
 LICENSE=	LGPL21+
+LICENSE_FILE=	${WRKSRC}/COPYING.LIB
 
 BUILD_DEPENDS=	rubygem-rake>=0:devel/rubygem-rake
 RUN_DEPENDS=	rubygem-glib2>=${PORTVERSION}:devel/rubygem-glib2