diff --git a/README.md b/README.md
index 03d0383..19e20e4 100644
--- a/README.md
+++ b/README.md
@@ -69,6 +69,7 @@ Currently listening in these countries . . . that I know of . . .
 * Automatic extraction of detected data (creating audio clips of detected bird sounds)
 * Spectrograms available for all extractions
 * Live audio stream & spectrogram
+* Automatic disk space management, where old audio files are periodically purged
 * [BirdWeather](https://app.birdweather.com) integration -- you can request a BirdWeather ID from BirdNET-Pi's "Tools" > "Settings" page
 * Web interface access to all data and logs provided by [Caddy](https://caddyserver.com)
 * [GoTTY](https://github.com/yudai/gotty) Web Terminal