diff --git a/readme-vars.yml b/readme-vars.yml
index e829933..77ae394 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -36,6 +36,7 @@ full_custom_readme: |
   -e PUID=1000 \
   -e PGID=1000 \
   -e TZ=Etc/UTC \
+  -e INVALIDATE_HOURS=24 `#optional` \
   -p 5000:5000 \
   -v /path/to/lsio-api/config:/config \
   --restart unless-stopped \