diff --git a/ui-ngx/src/app/core/api/widget-api.models.ts b/ui-ngx/src/app/core/api/widget-api.models.ts
index 2ed130cc60..eeeb73d038 100644
--- a/ui-ngx/src/app/core/api/widget-api.models.ts
+++ b/ui-ngx/src/app/core/api/widget-api.models.ts
@@ -278,7 +278,6 @@ export interface IWidgetSubscription {
   timeWindowConfig?: Timewindow;
   timeWindow?: WidgetTimewindow;
   widgetTimewindowChanged: Observable<WidgetTimewindow>;
-  widgetTimewindowChangedSubject: Subject<WidgetTimewindow>;
   comparisonEnabled?: boolean;
   comparisonTimeWindow?: WidgetTimewindow;