diff --git a/devel/rubygem-bin_utils/Makefile b/devel/rubygem-bin_utils/Makefile
index dcca4a01d850..1a5a9f5c698b 100644
--- a/devel/rubygem-bin_utils/Makefile
+++ b/devel/rubygem-bin_utils/Makefile
@@ -9,6 +9,8 @@ MASTER_SITES=	RG
 MAINTAINER=	ruby@FreeBSD.org
 COMMENT=	Extracting binary integers from binary string and packing back
 
+LICENSE=	MIT
+
 USE_RUBY=	yes
 USES=		gem