diff --git a/administration/config-cheat-sheet.en-us.md b/administration/config-cheat-sheet.en-us.md
index 03ab517d..f2209d26 100644
--- a/administration/config-cheat-sheet.en-us.md
+++ b/administration/config-cheat-sheet.en-us.md
@@ -522,6 +522,10 @@ And the following unique queues:
   - `deletion`: User cannot delete their own account.
   - `manage_ssh_keys`: User cannot configure ssh keys.
   - `manage_gpg_keys`: User cannot configure gpg keys.
+- `EXTERNAL_USER_DISABLE_FEATURES`: **_empty_**: Comma separated list of disabled features ONLY if the user has an external login type (eg. LDAP, Oauth, etc.), could be `deletion`, `manage_ssh_keys`, `manage_gpg_keys`. This setting is independent from `USER_DISABLED_FEATURES` and supplements its behavior.
+  - `deletion`: User cannot delete their own account.
+  - `manage_ssh_keys`: User cannot configure ssh keys.
+  - `manage_gpg_keys`: User cannot configure gpg keys.
 
 ## Security (`security`)