diff --git a/README.md b/README.md
index 8667eca..eefd6fb 100644
--- a/README.md
+++ b/README.md
@@ -51,23 +51,26 @@ ### Options when running the script
There are optional flags you can use when running the script:
```YAML
--s, --showedits Show edits made to _host db and db.new file(s)
--n, --noupdate Prevent DSM updating the compatible drive databases
--m, --m2 Don't process M.2 drives
--f, --force Force DSM to not check drive compatibility
--r, --ram Disable memory compatibility checking (DSM 7.x only) and set max memory to amount of installed memory
--w, --wdda Disable WD WDDA
- --restore Undo all changes made by the script
- --autoupdate=AGE Auto update script (useful when script is scheduled)
- AGE is how many days old a release must be before auto-updating. AGE must be a number: 0 or greater
--h, --help Show this help message
--v, --version Show the script version
+ -s, --showedits Show edits made to _host db and db.new file(s)
+ -n, --noupdate Prevent DSM updating the compatible drive databases
+ -m, --m2 Don't process M.2 drives
+ -f, --force Force DSM to not check drive compatibility
+ -r, --ram Disable memory compatibility checking (DSM 7.x only),
+ and sets max memory to the amount of installed memory
+ -w, --wdda Disable WD WDDA
+ -i, --immutable Enable immutable snapshots on models older than
+ 20-series (DSM 7.2 and newer only).
+ -e, --email Disable colored text in output scheduler emails.
+ --restore Undo all changes made by the script
+ --autoupdate=AGE Auto update script (useful when script is scheduled)
+ AGE is how many days old a release must be before
+ auto-updating. AGE must be a number: 0 or greater
+ -h, --help Show this help message
+ -v, --version Show the script version
```
**Note:** If you have some Synology drives and want to update their firmware run the script **without** --noupdate or -n then do the drive database update from Storage Manager and finally run the script again with your preferred options.
-
-
### Scheduling the script in Synology's Task Scheduler
See How to schedule a script in Synology Task Scheduler