--- rxvt-unicode/src/urxvt.pm	2009/12/26 09:42:16	1.180
+++ rxvt-unicode/src/urxvt.pm	2010/01/06 17:52:43	1.181
@@ -711,6 +711,10 @@
 Called when various types of ClientMessage events are received (all with
 format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
 
+=item on_bell $term
+
+Called on receipt of a bell character.
+
 =back
 
 =cut