diff --git a/planetblupi.1.ronn b/planetblupi.1.ronn
index c495549..04e36ed 100644
--- a/planetblupi.1.ronn
+++ b/planetblupi.1.ronn
@@ -193,6 +193,9 @@ Only 10 musics are supported: `music000` to `music009`.
   * `-m`, `--restore-midi`:
     Restore playback based on MIDI music instead of OGG.
 
+  * `-q`, `--render-quality`:
+    Enable anti-aliasing [on;off] (default: on, ignored if windowed).
+
 ## AUTHOR
 
 **Planet Blupi** is an original creation of Epsitec SA.