diff --git a/README.md b/README.md
index fc9bfdb..656652d 100644
--- a/README.md
+++ b/README.md
@@ -47,5 +47,6 @@ Add the following to cron to automate Backup
 <br>
 
 edit the zip_folder_daily.sh in `/opt` and the change the line 
+find "${ARCHIVE_DIR}" -name "folder_*.zip" -mtime +`13` -exec rm {} \;
 
 </details> 
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