diff --git a/devTools/FC.d.ts b/devTools/FC.d.ts
index ab9704e07d6cfbc7171c76860b70f7fbb4466a42..d3fb538d909f04a6f9564085a0766d3ae6ba3e3a 100644
--- a/devTools/FC.d.ts
+++ b/devTools/FC.d.ts
@@ -50,6 +50,8 @@ declare namespace App {
 
 	namespace Interact {}
 
+	namespace Main {}
+	
 	namespace RA {
 		class NumericTarget {
 			cond: string;
diff --git a/js/002-config/fc-js-init.js b/js/002-config/fc-js-init.js
index f01b00419cd4402a38ff4f7dbbbb7442d47e858e..234b77d3d33e7889cadab7063b1feb51a2c38921 100644
--- a/js/002-config/fc-js-init.js
+++ b/js/002-config/fc-js-init.js
@@ -9,6 +9,7 @@ App.Data = {};
 App.Debug = {};
 App.Entity = {};
 App.Entity.Utils = {};
+App.Main = {};
 App.UI = {};
 App.UI.DOM = {};
 App.UI.View = {};