diff --git a/app/models/search/document.rb b/app/models/search/document.rb
index 3d07411..dc362a8 100644
--- a/app/models/search/document.rb
+++ b/app/models/search/document.rb
@@ -50,7 +50,7 @@ def published
       search_attribute :document_type, object: 'Document', group: 'Document Type', multiple: true, facet: true
       search_attribute :orientation, object: 'Document', group: 'Orientation (spine)', multiple: true, facet: true
       search_attribute :size, object: 'Document', group: 'Size', facet: true
-      search_attribute :aperture, object: 'Document', group: 'Aperture', facet: true
+      search_attribute :aperture, object: 'Document', group: 'Aperture', multiple: true, facet: true
       search_attribute :binding_type, object: 'Document', group: 'Binding Type', multiple: true, facet: true
       search_attribute :binding_color, object: 'Document', group: 'Color', form_field: 'binding_color', multiple: true, facet: true
       search_attribute :number_sewing_supports, facet: true
diff --git a/typesense/schema.json b/typesense/schema.json
index e83baaa..92e3a9b 100644
--- a/typesense/schema.json
+++ b/typesense/schema.json
@@ -119,7 +119,7 @@
     },
     {
       "name": "aperture_facet",
-      "type": "string",
+      "type": "string[]",
       "facet": true,
       "optional": true
     },