diff --git a/packages/devextreme/js/ui/chat.d.ts b/packages/devextreme/js/ui/chat.d.ts
index 1fae21aa59ff..e70efa9e80e1 100644
--- a/packages/devextreme/js/ui/chat.d.ts
+++ b/packages/devextreme/js/ui/chat.d.ts
@@ -132,7 +132,7 @@ export interface dxChatOptions extends WidgetOptions<dxChat> {
  * @namespace DevExpress.ui
  * @public
  */
-export default class dxChat extends Widget<dxChatOptions> { }
+export default class dxChat extends Widget<Properties> { }
 
 /** @public */
 export type ExplicitTypes = {
diff --git a/packages/devextreme/ts/dx.all.d.ts b/packages/devextreme/ts/dx.all.d.ts
index 351911d6c337..de5f3bee965a 100644
--- a/packages/devextreme/ts/dx.all.d.ts
+++ b/packages/devextreme/ts/dx.all.d.ts
@@ -9415,7 +9415,7 @@ declare module DevExpress.ui {
   /**
    * [descr:dxChat]
    */
-  export class dxChat extends Widget<dxChatOptions> {}
+  export class dxChat extends Widget<DevExpress.ui.dxChat.Properties> {}
   module dxChat {
     /**
      * [descr:_ui_chat_ContentReadyEvent]