diff --git a/app/institutions/discover/controller.ts b/app/institutions/discover/controller.ts
index 7f52f572a19..ffb5706ddb4 100644
--- a/app/institutions/discover/controller.ts
+++ b/app/institutions/discover/controller.ts
@@ -24,7 +24,7 @@ export default class InstitutionDiscoverController extends Controller {
             key = 'creator.affiliation';
             break;
         case ResourceTypeFilterValue.Files:
-            key = 'isContainedby.affiliation';
+            key = 'isContainedBy.affiliation';
             break;
         default:
             break;