diff --git a/scripts/functions/utility b/scripts/functions/utility
index a464f2b568..6565de9a19 100755
--- a/scripts/functions/utility
+++ b/scripts/functions/utility
@@ -60,7 +60,8 @@ __rvm_remove_from_path()
   if
     [[ "$PATH" == *"//"* || "$PATH" == *"/:"* ]]
   then
-    PATH="$(\sed -E -e 's#/+#/#g' -e 's#/:#:#' <<<$PATH)"
+    while [[ "$PATH" == *"//"* ]] ; do PATH="${PATH/\/\///}" ; done
+    while [[ "$PATH" == *"/:"* ]] ; do PATH="${PATH/\/:/:}" ; done
   fi
 
   if