diff --git a/mpv/input.conf b/mpv/input.conf
index ed5d4e4..0f1f9be 100644
--- a/mpv/input.conf
+++ b/mpv/input.conf
@@ -117,6 +117,8 @@ k cycle pause                      # toggle pause/playback mode
 } add sub-delay +10                    # delay subtitles by 10s
 ( add audio-delay -0.1           # change audio/video sync by delaying the audio
 ) add audio-delay +0.1           # change audio/video sync by shifting the audio earlier
++ add sub-scale +0.01
+_ add sub-scale -0.01
 # ctrl++ add audio-delay 0.100           # change audio/video sync by delaying the audio
 # ctrl+- add audio-delay -0.100          # change audio/video sync by shifting the audio earlier
 # Shift+g add sub-scale +0.1             # increase the subtitle font size