diff --git a/src/app/+search-page/search-options.model.ts b/src/app/+search-page/search-options.model.ts
index 4164321680..4b4987a096 100644
--- a/src/app/+search-page/search-options.model.ts
+++ b/src/app/+search-page/search-options.model.ts
@@ -1,5 +1,6 @@
 import { isNotEmpty } from '../shared/empty.util';
 import { URLCombiner } from '../core/url-combiner/url-combiner';
+import 'core-js/library/fn/object/entries';
 
 export enum ViewMode {
   List = 'list',
diff --git a/tsconfig.json b/tsconfig.json
index 8ab72a4327..8037c659ed 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -26,8 +26,7 @@
       "es6",
       "es2015",
       "es2016",
-      "es2017",
-      "es2017.object"
+      "es2017"
     ]
   },
   "exclude": [