diff --git a/typescript/base/pane.ts b/typescript/base/pane.ts
index 1d8acd8bf1..75c3fc9f0f 100644
--- a/typescript/base/pane.ts
+++ b/typescript/base/pane.ts
@@ -8,5 +8,5 @@ export interface _Pane extends _Widget {
 }
 
 export interface _PaneStatic {
-    EVENT_LOADED: "EVENT_LOADED";
-}
\ No newline at end of file
+    EVENT_LOADED: string;
+}
diff --git a/typescript/base/single/button/button.basic.ts b/typescript/base/single/button/button.basic.ts
index 294ed0b0e8..acdb143d2c 100644
--- a/typescript/base/single/button/button.basic.ts
+++ b/typescript/base/single/button/button.basic.ts
@@ -31,3 +31,7 @@ export interface _BasicButton extends _Single {
 
     isDisableSelected(): boolean;
 }
+
+export interface _BasicButtonStatic {
+    EVENT_CHANGE: string;
+}
diff --git a/typescript/index.ts b/typescript/index.ts
index 5e66099839..61146c7cbc 100644
--- a/typescript/index.ts
+++ b/typescript/index.ts
@@ -6,7 +6,7 @@ import { _func } from "./core/func";
 import { _Widget, _WidgetStatic } from "./core/widget";
 import { _Single } from "./base/single/single";
 import { _base } from "./core/base";
-import { _BasicButton } from "./base/single/button/button.basic";
+import { _BasicButton, _BasicButtonStatic } from "./base/single/button/button.basic";
 import { _Trigger } from "./base/single/trigger/trigger";
 import { _Action, _ActionFactory } from "./core/action/action";
 import { _ShowAction } from "./core/action/action.show";
@@ -26,7 +26,7 @@ export interface BI extends _func, _i18n, _base {
     OB: ClassConstructor<_OB>;
     Widget: ClassConstructor<_Widget> & _WidgetStatic;
     Single: ClassConstructor<_Single>;
-    BasicButton: ClassConstructor<_BasicButton>;
+    BasicButton: ClassConstructor<_BasicButton> & _BasicButtonStatic;
     Trigger: ClassConstructor<_Trigger>;
     Action: ClassConstructor<_Action>;
     ActionFactory: ClassConstructor<_ActionFactory>;