diff --git a/textproc/rubygem-rdtool/Makefile b/textproc/rubygem-rdtool/Makefile
index db94ce124583..bc2492cdabd1 100644
--- a/textproc/rubygem-rdtool/Makefile
+++ b/textproc/rubygem-rdtool/Makefile
@@ -2,7 +2,7 @@
 
 PORTNAME=	rdtool
 PORTVERSION=	0.6.38
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	textproc ruby
 MASTER_SITES=	RG
 
@@ -16,6 +16,7 @@ NO_ARCH=	yes
 
 USES=		shebangfix
 SHEBANG_FILES=	bin/rd2 bin/rdswap.rb
+ruby_OLD_CMD=	/usr/bin/ruby1.9.1
 USE_RUBY=	yes
 USE_RUBYGEMS=	yes
 RUBYGEM_AUTOPLIST=	yes