diff --git a/graphics/ruby-ming/Makefile b/graphics/ruby-ming/Makefile
index 287e400c9cbc..8ccc6276f408 100644
--- a/graphics/ruby-ming/Makefile
+++ b/graphics/ruby-ming/Makefile
@@ -8,7 +8,7 @@ PORTNAME=	ming
 PORTVERSION=	0.2a.${RUBY_MING_VERSION}
 CATEGORIES+=	graphics ruby
 MASTER_SITES=	http://madscientist.jp/~ikegami/sources/
-PKGNAMEPREFIX=	${RUBY_PKGNAMEPREFIX}
+PKGNAMEPREFIX?=	${RUBY_PKGNAMEPREFIX}
 DISTNAME=	${PORTNAME}-ruby-${RUBY_MING_VERSION}
 DIST_SUBDIR=	ruby
 
diff --git a/graphics/ruby-ming/distinfo b/graphics/ruby-ming/distinfo
index f43e54f415c1..1e471d80d617 100644
--- a/graphics/ruby-ming/distinfo
+++ b/graphics/ruby-ming/distinfo
@@ -1 +1,2 @@
 MD5 (ruby/ming-ruby-0.1.6.tar.gz) = df39e476dc4b93e8142c510d61369ffd
+SIZE (ruby/ming-ruby-0.1.6.tar.gz) = 42844