diff --git a/src/lib/listing/listing-component.directive.ts b/src/lib/listing/listing-component.directive.ts
index e372c1d..f248a5b 100644
--- a/src/lib/listing/listing-component.directive.ts
+++ b/src/lib/listing/listing-component.directive.ts
@@ -37,7 +37,7 @@ export abstract class ListingComponent<T extends IListable> extends AutoUnsubscr
         return this.entitiesService.all;
     }
 
-    private get _sortedDisplayedEntities$(): Observable<readonly T[]> {
+    private get _sortedDisplayedEntities$(): Observable<T[]> {
         const sort = (entities: T[]) => this.sortingService.defaultSort(entities);
         const sortedEntities$ = this.listingService.displayed$.pipe(map(sort));
         return this.sortingService.sortingOption$.pipe(switchMapTo(sortedEntities$), shareDistinctLast());