diff --git a/docs/image-preview.md b/docs/image-preview.md
index 11409603..125bffd3 100644
--- a/docs/image-preview.md
+++ b/docs/image-preview.md
@@ -51,7 +51,7 @@ it will automatically use the "Window system protocol" to display images - this
 To enable Yazi's image preview to work correctly in tmux, add the following 3 options to your `tmux.conf`:
 
 ```sh
-set -g allow-passthrough all
+set -g allow-passthrough on
 set -ga update-environment TERM
 set -ga update-environment TERM_PROGRAM
 ```