diff --git a/conf/commonshrc b/conf/commonshrc
index 23720a2..1eb0787 100644
--- a/conf/commonshrc
+++ b/conf/commonshrc
@@ -42,6 +42,9 @@ add_myprefix_to PYTHONPATH lib/python/site-packages
 add_myprefix_to PYTHONPATH lib/python
 
 add_myprefix_to RUBYLIB lib/ruby/site_ruby/1.8
+add_myprefix_to RUBYLIB lib/ruby/site_ruby/1.9.1
+add_to PATH ~/.gem/ruby/1.8/bin
+add_to PATH ~/.gem/ruby/1.9.1/bin
 
 if [ -x /usr/bin/perl ]; then
   add_myprefix_to PERL5LIB lib/perl/`perl -e 'printf"%vd\n",$^V'`