diff --git a/lang/ruby/1.8/Makefile b/lang/ruby/1.8/Makefile
index d825bc19c6c..139b96094b4 100644
--- a/lang/ruby/1.8/Makefile
+++ b/lang/ruby/1.8/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.17 2011/11/15 00:05:16 jeremy Exp $
+# $OpenBSD: Makefile,v 1.18 2011/11/17 11:47:12 jeremy Exp $
 
 COMMENT-main=		object oriented script language with threads
 COMMENT-iconv=		libiconv interface for ruby
@@ -70,6 +70,7 @@ RUN_DEPENDS-tk =
 MULTI_PACKAGES +=	-ri_docs
 ALL_TARGET =		all rdoc
 INSTALL_TARGET =	install install-doc
+VMEM_WARNING =		Yes
 .endif
 
 # Known regression failures in OpenSSL extension on sparc64
diff --git a/lang/ruby/1.9/Makefile b/lang/ruby/1.9/Makefile
index f2fae0a648a..eefc30ca82b 100644
--- a/lang/ruby/1.9/Makefile
+++ b/lang/ruby/1.9/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.20 2011/11/15 00:04:15 jeremy Exp $
+# $OpenBSD: Makefile,v 1.21 2011/11/17 11:47:12 jeremy Exp $
 
 COMMENT-main =		object oriented script language with threads
 COMMENT-gdbm =		gdbm interface for ruby
@@ -77,6 +77,7 @@ RUN_DEPENDS-tk =
 MULTI_PACKAGES +=	-ri_docs
 ALL_TARGET +=		rdoc
 INSTALL_TARGET +=	install-doc
+VMEM_WARNING =		Yes
 .endif
 
 SUBST_VARS +=		RUBYLIBREV
diff --git a/lang/ruby/Makefile.inc b/lang/ruby/Makefile.inc
index 14394ece4fe..d8b60cb05be 100644
--- a/lang/ruby/Makefile.inc
+++ b/lang/ruby/Makefile.inc
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile.inc,v 1.4 2011/11/17 10:54:11 jeremy Exp $
+# $OpenBSD: Makefile.inc,v 1.5 2011/11/17 11:47:12 jeremy Exp $
 
 SHARED_ONLY ?=	Yes
 
@@ -29,6 +29,3 @@ CONFIGURE_ENV +=	PREFIX="${PREFIX}" \
 REV ?=			${VERSION:R}
 SUB ?=			${MACHINE_ARCH:S/amd64/x86_64/}-openbsd
 SUBST_VARS +=		SUB REV
-
-# Building the ruby documentation consumes lots of memory.
-VMEM_WARNING = Yes