diff --git a/Olivero Sub-theme commands.md b/Olivero Sub-theme commands.md
index 5aec750..90763d8 100644
--- a/Olivero Sub-theme commands.md	
+++ b/Olivero Sub-theme commands.md	
@@ -21,6 +21,7 @@ remove the configs for the ones that are not the islandora related
 
 remove the uuid at the top of each of these files: 
 `sed -i '1d'` * (this removes the first line of each file which is the uuid)
+macos: `sed -i '' '1d' *.yml`
 
 change the theme defined in each: 
 `perl -pi -w -e 's/olivero/vre2024/g;' **/*.*`