diff --git a/gtk2_ardour/editor.cc b/gtk2_ardour/editor.cc
index 963070aa65..2175ed7bce 100644
--- a/gtk2_ardour/editor.cc
+++ b/gtk2_ardour/editor.cc
@@ -821,11 +821,11 @@ Editor::show_window ()
 		   be nicer if we could just call show () above rather
 		   than needing the show_all ()
 		*/
-		
+
 		/* re-hide stuff if necessary */
 		editor_list_button_toggled ();
 		parameter_changed ("show-summary");
-		parameter_changed ("show-edit-group-tabs");
+		parameter_changed ("show-group-tabs");
 		parameter_changed ("show-zoom-tools");
 
 		/* now reset all audio_time_axis heights, because widgets might need
diff --git a/gtk2_ardour/mixer_ui.cc b/gtk2_ardour/mixer_ui.cc
index 264b975735..dc3aced978 100644
--- a/gtk2_ardour/mixer_ui.cc
+++ b/gtk2_ardour/mixer_ui.cc
@@ -250,6 +250,9 @@ Mixer_UI::show_window ()
 	if (!_visible) {
 		set_window_pos_and_size ();
 
+		/* show/hide group tabs as required */
+		parameter_changed ("show-group-tabs");
+
 		/* now reset each strips width so the right widgets are shown */
 		MixerStrip* ms;