diff --git a/tutorial/Makefile.am b/tutorial/Makefile.am
index 86c08c0..6ca82ed 100755
--- a/tutorial/Makefile.am
+++ b/tutorial/Makefile.am
@@ -47,7 +47,7 @@
 endif
 
 if WITH_RUBY
-#SUBDIRS += rb
+SUBDIRS += rb
 endif
 
 if WITH_HASKELL