diff --git a/src/Squidex/app/framework/angular/indeterminate-value.directive.ts b/src/Squidex/app/framework/angular/indeterminate-value.directive.ts
index 8cec0c565..4112d0232 100644
--- a/src/Squidex/app/framework/angular/indeterminate-value.directive.ts
+++ b/src/Squidex/app/framework/angular/indeterminate-value.directive.ts
@@ -28,7 +28,7 @@ export class IndeterminateValueDirective implements ControlValueAccessor {
     ) {
     }
 
-    @HostListener('change', ['$event.target.value'])
+    @HostListener('change', ['$event.target.checked'])
     public onChange(value: any) {
         this.callChange(value);
     }