diff --git a/dev-lang/ruby/ruby-1.9.1.bep b/dev-lang/ruby/ruby-1.9.1.bep
index 3221bf8de..c8f874a77 100644
--- a/dev-lang/ruby/ruby-1.9.1.bep
+++ b/dev-lang/ruby/ruby-1.9.1.bep
@@ -8,7 +8,9 @@ DEPEND="dev-libs/libedit >= 20100424"
 BUILD {
 	cd ruby-1.9.1-p243
 	autoconf
-	./configure --prefix=`finddir B_COMMON_DIRECTORY`
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` \
+		--mandir=`finddir B_COMMON_DOCUMENTATION_DIRECTORY`/man \
+		--datarootdir=`finddir B_COMMON_DATA_DIRECTORY`/ruby
 	make
 }