diff --git a/graphql/schema/types/filters.graphql b/graphql/schema/types/filters.graphql
index 4e70b7353..d0d6a4b65 100644
--- a/graphql/schema/types/filters.graphql
+++ b/graphql/schema/types/filters.graphql
@@ -487,6 +487,8 @@ input StudioFilterType {
   created_at: TimestampCriterionInput
   "Filter by last update time"
   updated_at: TimestampCriterionInput
+
+  custom_fields: [CustomFieldCriterionInput!]
 }
 
 input GalleryFilterType {