diff --git a/mkdocs/docs/index.md b/mkdocs/docs/index.md
index f95577a..6a5872f 100644
--- a/mkdocs/docs/index.md
+++ b/mkdocs/docs/index.md
@@ -29,6 +29,7 @@ You can control the video player with the following keyboard shortcuts:
 
 - `?`: Show help
 - `m`: toggle mute
+- `f`: toggle fullscreen
 - `c`: toggle subtitles if available
 - `>`: increase playback speed
 - `<`: decrease playback speed