diff --git a/gtk2_ardour/mixer_strip.cc b/gtk2_ardour/mixer_strip.cc
index 3403a84028..b11751d957 100644
--- a/gtk2_ardour/mixer_strip.cc
+++ b/gtk2_ardour/mixer_strip.cc
@@ -1572,11 +1572,11 @@ MixerStrip::width_button_pressed (GdkEventButton* ev)
 	if (Keyboard::modifier_state_contains (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier | Keyboard::TertiaryModifier)) && _mixer_owned) {
 		switch (_width) {
 		case Wide:
-			_mixer.set_strip_width (Narrow);
+			_mixer.set_strip_width (Narrow, true);
 			break;
 
 		case Narrow:
-			_mixer.set_strip_width (Wide);
+			_mixer.set_strip_width (Wide, true);
 			break;
 		}
 	} else {
diff --git a/gtk2_ardour/mixer_ui.cc b/gtk2_ardour/mixer_ui.cc
index e3a97daa6f..f206014eea 100644
--- a/gtk2_ardour/mixer_ui.cc
+++ b/gtk2_ardour/mixer_ui.cc
@@ -1477,12 +1477,12 @@ Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
 }
 
 void
-Mixer_UI::set_strip_width (Width w)
+Mixer_UI::set_strip_width (Width w, bool save)
 {
 	_strip_width = w;
 
 	for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
-		(*i)->set_width_enum (w, this);
+		(*i)->set_width_enum (w, save ? (*i)->width_owner() : this);
 	}
 }
 
diff --git a/gtk2_ardour/mixer_ui.h b/gtk2_ardour/mixer_ui.h
index 8a293f7f9f..4f1c6823e7 100644
--- a/gtk2_ardour/mixer_ui.h
+++ b/gtk2_ardour/mixer_ui.h
@@ -66,7 +66,7 @@ class Mixer_UI : public Gtk::Window, public PBD::ScopedConnectionList, public AR
 
 	PluginSelector* plugin_selector();
 
-	void  set_strip_width (Width);
+	void  set_strip_width (Width, bool save = false);
 	Width get_strip_width () const { return _strip_width; }
 
 	void unselect_strip_in_display (MixerStrip*);