diff --git a/app/controllers/admin/indexes/item/documents/index.js b/app/controllers/admin/indexes/item/documents/index.js
index 6ecc430..945225a 100644
--- a/app/controllers/admin/indexes/item/documents/index.js
+++ b/app/controllers/admin/indexes/item/documents/index.js
@@ -154,7 +154,7 @@ export default class AdminIndexesItemDocumentsIndexController extends Controller
 
   @action
   setSort(newSort) {
-    this.sort = [newSort];
+    this.sort = newSort ? [newSort] : [];
   }
 
   @action