diff --git a/app/controllers/taxon_name_relationships_controller.rb b/app/controllers/taxon_name_relationships_controller.rb
index b4a552d1ca..5604b39dab 100644
--- a/app/controllers/taxon_name_relationships_controller.rb
+++ b/app/controllers/taxon_name_relationships_controller.rb
@@ -122,7 +122,7 @@ def taxon_name_relationship_params
   end
 
   def filter_sql
-    h = params.permit(:taxon_name_id, :as_object, :as_subject, of_type: []).to_h.symbolize_keys
+    h = params.permit(:taxon_name_id, :as_object, :as_subject, of_types: []).to_h.symbolize_keys
     Queries::TaxonNameRelationshipsFilterQuery.new(**h).where_sql
   end