diff --git a/gtk2_ardour/ardour_ui.cc b/gtk2_ardour/ardour_ui.cc
index 840e1128e7..2d01606dac 100644
--- a/gtk2_ardour/ardour_ui.cc
+++ b/gtk2_ardour/ardour_ui.cc
@@ -1802,6 +1802,9 @@ ARDOUR_UI::transport_stop ()
 	_session->request_stop (false, true);
 }
 
+/** Check if any tracks are record enabled. If none are, record enable all of them.
+ * @return true if track record-enabled status was changed, false otherwise.
+ */
 bool
 ARDOUR_UI::trx_record_enable_all_tracks ()
 {