diff --git a/gtk2_ardour/ardour_dropdown.cc b/gtk2_ardour/ardour_dropdown.cc
index ec63c8262e..c991087f25 100644
--- a/gtk2_ardour/ardour_dropdown.cc
+++ b/gtk2_ardour/ardour_dropdown.cc
@@ -50,6 +50,7 @@ ArdourDropdown::ArdourDropdown (Element e)
 	: _scrolling_disabled(false)
 {
 //	signal_button_press_event().connect (sigc::mem_fun(*this, &ArdourDropdown::on_mouse_pressed));
+	_menu.signal_size_request().connect (sigc::mem_fun(*this, &ArdourDropdown::menu_size_request));
 
 	add_elements(e);
 	add_elements(ArdourButton::Menu);
@@ -59,6 +60,11 @@ ArdourDropdown::~ArdourDropdown ()
 {
 }
 
+void
+ArdourDropdown::menu_size_request(Requisition *req) {
+	req->width = max(req->width, get_allocation().get_width());
+}
+
 void
 ArdourDropdown::position_menu(int& x, int& y, bool& push_in) {
 	using namespace Menu_Helpers;
diff --git a/gtk2_ardour/ardour_dropdown.h b/gtk2_ardour/ardour_dropdown.h
index 9b79f10b0e..5a710ec539 100644
--- a/gtk2_ardour/ardour_dropdown.h
+++ b/gtk2_ardour/ardour_dropdown.h
@@ -39,6 +39,7 @@ class ArdourDropdown : public ArdourButton
 	bool on_button_press_event (GdkEventButton*);
 	bool on_scroll_event (GdkEventScroll*);
 	void position_menu(int&, int&, bool&);
+	void menu_size_request(Gtk::Requisition*);
 
 	void clear_items ();
 	void AddMenuElem (Gtk::Menu_Helpers::Element e);