diff --git a/FAQ.md b/FAQ.md
index 6276073d..4cd4803a 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -45,12 +45,16 @@ or the `environment:` section in `compose.yaml` file.
 | YTP_TEMP_DISABLED              | Disable temp files handling.                                       | `false`               |
 | YTP_DOWNLOAD_PATH_DEPTH        | How many subdirectories to show in auto complete.                  | `1`                   |
 | YTP_ALLOW_INTERNAL_URLS        | Allow requests to internal URLs                                    | `false`               |
+| YTP_SIMPLE_MODE                | Switch default interface to Simple mode.                           | `false`               |
 
 > [!NOTE]
 > To raise the maximum workers for specific extractor, you need to add a ENV variable that follows the pattern `YTP_MAX_WORKERS_FOR_<EXTRACTOR_NAME>`.
 > The extractor name must be in uppercase, to know the extractor name, check the log for the specific extractor used for the download.
 > The limit should not exceed the `YTP_MAX_WORKERS` value as it will be ignored.
 
+> [!IMPORTANT]
+> The env variable `YTP_SIMPLE_MODE` only control what being displayed for first time visitor, the users can still switch between the two modes  via the WebUI settings page.
+
 
 # Browser extensions & bookmarklets