diff --git a/src/app/datasets/services/research-url.service.ts b/src/app/datasets/services/research-url.service.ts
index b9b5f1079d54e80a150632a34ec29333fd31785d..bd9df33e3688087be892b483fcaa3352ea87bfd5 100644
--- a/src/app/datasets/services/research-url.service.ts
+++ b/src/app/datasets/services/research-url.service.ts
@@ -57,7 +57,7 @@ export class ResearchUrlService {
       value,
       order: startWithNeg ? 'desc' : 'asc',
     };
-    const acceptedSortValues = ['date, relevance, alphabetical'];
+    const acceptedSortValues = ['date', 'relevance', 'alphabetical'];
     // Check if sort value exists
     if (acceptedSortValues.includes(optionsSort.value)) {
       options.sortOptions = optionsSort;