diff --git a/README.md b/README.md
index 8b6f87d..590c3fc 100644
--- a/README.md
+++ b/README.md
@@ -70,7 +70,7 @@ All command line arguments can be set through OS environment variables.
 Note that using a command line argument overwrites a setting by the environment
 variable. Available OS environment variables are:
 
-- `APP_ID`
+- `API_ID`
 - `API_HASH`
 - `BOT_TOKEN`
 - `YTDLP_PATH`