diff --git a/README.md b/README.md
index 906fb61..a826631 100644
--- a/README.md
+++ b/README.md
@@ -315,7 +315,7 @@ Every series of arguments after an instance of `--window` or `-w` is treated as
 ```sh
 tmex your-session-name -w abc -f4 123 "cmd a" "cmd b" -w efg -f-2 44 "cmd c"
 ```
-By default, the session will begin with the _first_ window in focus. If you'd like to begin with a different window in focus, simply replace the corresponding `--window` or `-w` arg with `--window-active` or `-W`, respectively:
+By default, the session will begin with the _first_ window in focus. If you'd like to begin with a different window in focus, simply replace the corresponding `--window` or `-w` arg with `--window-focus` or `-W`, respectively:
 ```sh
 tmex your-session-name --window-focus abc 123 -w efg 44  # focus 1st window
 tmex your-session-name --window abc 123 -W efg 44         # focus 2nd window