diff --git a/gtk2_ardour/mixer_ui.cc b/gtk2_ardour/mixer_ui.cc
index 3735d9323d..e0e47bd73d 100644
--- a/gtk2_ardour/mixer_ui.cc
+++ b/gtk2_ardour/mixer_ui.cc
@@ -1155,7 +1155,7 @@ Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 		if (_selection.selected (strip)) {
 			/* primary-click: toggle selection state of strip */
 			if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
-				_selection.remove (strip, true);
+				_selection.remove (strip, false);
 			} else if (_selection.axes.size() > 1) {
 				/* de-select others */
 				_selection.set (strip);