diff --git a/gtk2_ardour/ardour_ui_ed.cc b/gtk2_ardour/ardour_ui_ed.cc
index 3c7f3d03c7..8b7f43e0f1 100644
--- a/gtk2_ardour/ardour_ui_ed.cc
+++ b/gtk2_ardour/ardour_ui_ed.cc
@@ -126,7 +126,7 @@ void
 ARDOUR_UI::install_actions ()
 {
 	Glib::RefPtr<ActionGroup> main_actions = ActionManager::create_action_group (global_bindings, X_("Main"));
-	Glib::RefPtr<ActionGroup> main_menu_actions = ActionManager::create_action_group (global_bindings, X_("Main_menu"));
+	Glib::RefPtr<ActionGroup> main_menu_actions = ActionManager::create_action_group (global_bindings, X_("Main Menu"));
 	Glib::RefPtr<Action> act;
 
 	ActionManager::register_action (main_actions, X_("Escape"), _("Escape (deselect all)"), sigc::mem_fun (*this, &ARDOUR_UI::escape));
diff --git a/libs/surfaces/cc121/gui.cc b/libs/surfaces/cc121/gui.cc
index e81e5655b7..e8df39e1a4 100644
--- a/libs/surfaces/cc121/gui.cc
+++ b/libs/surfaces/cc121/gui.cc
@@ -416,7 +416,7 @@ CC121GUI::build_available_action_menu ()
 		}
 
 		//kinda kludgy way to avoid displaying menu items as mappable
-		if ( parts[1] == _("Main_menu") )
+		if ( parts[1] == _("Main Menu") )
 			continue;
 		if ( parts[1] == _("JACK") )
 			continue;
diff --git a/libs/surfaces/faderport/gui.cc b/libs/surfaces/faderport/gui.cc
index 5b0921e9ac..9bfc1ec935 100644
--- a/libs/surfaces/faderport/gui.cc
+++ b/libs/surfaces/faderport/gui.cc
@@ -413,7 +413,7 @@ FPGUI::build_available_action_menu ()
 		}
 
 		//kinda kludgy way to avoid displaying menu items as mappable
-		if ( parts[1] == _("Main_menu") )
+		if ( parts[1] == _("Main Menu") )
 			continue;
 		if ( parts[1] == _("JACK") )
 			continue;
diff --git a/libs/surfaces/faderport8/gui.cc b/libs/surfaces/faderport8/gui.cc
index a6e0731d33..ebe060705c 100644
--- a/libs/surfaces/faderport8/gui.cc
+++ b/libs/surfaces/faderport8/gui.cc
@@ -392,7 +392,7 @@ FP8GUI::build_available_action_menu ()
 		}
 
 		//kinda kludgy way to avoid displaying menu items as mappable
-		if ( parts[1] == _("Main_menu") )
+		if ( parts[1] == _("Main Menu") )
 			continue;
 		if ( parts[1] == _("JACK") )
 			continue;
diff --git a/libs/surfaces/mackie/gui.cc b/libs/surfaces/mackie/gui.cc
index 7181677128..8f0606c095 100644
--- a/libs/surfaces/mackie/gui.cc
+++ b/libs/surfaces/mackie/gui.cc
@@ -508,7 +508,7 @@ MackieControlProtocolGUI::build_available_action_menu ()
 		}
 
 		//kinda kludgy way to avoid displaying menu items as mappable
-		if ( parts[1] == _("Main_menu") )
+		if ( parts[1] == _("Main Menu") )
 			continue;
 		if ( parts[1] == _("JACK") )
 			continue;
diff --git a/libs/surfaces/us2400/gui.cc b/libs/surfaces/us2400/gui.cc
index e05aa854a1..c4fac0e7e2 100644
--- a/libs/surfaces/us2400/gui.cc
+++ b/libs/surfaces/us2400/gui.cc
@@ -422,7 +422,7 @@ US2400ProtocolGUI::build_available_action_menu ()
 		}
 
 		/* kinda kludgy way to avoid displaying menu items as mappable */
-		if (parts[1] == _("Main_menu"))
+		if (parts[1] == _("Main Menu"))
 			continue;
 		if (parts[1] == _("JACK"))
 			continue;