diff --git a/src/ruby/install.sh b/src/ruby/install.sh
index e13158d..7c71282 100644
--- a/src/ruby/install.sh
+++ b/src/ruby/install.sh
@@ -268,7 +268,5 @@ if [ ${SKIP_RBENV_RBUILD} != "true"] ; then
 fi
 
 # Clean up
-source /usr/local/rvm/scripts/rvm
-rvm cleanup all 
-gem cleanup
+su ${USERNAME} -c ". /usr/local/rvm/scripts/rvm && rvm cleanup all && \"$(which gem || echo ${ROOT_GEM})\" cleanup"
 echo "Done!"