diff --git a/app/views/shared/editable/_form.html.haml b/app/views/shared/editable/_form.html.haml
index 1c51efdae..69b79cbcf 100644
--- a/app/views/shared/editable/_form.html.haml
+++ b/app/views/shared/editable/_form.html.haml
@@ -13,6 +13,6 @@
         = f.select field, collection
       - elsif field_type == :date
         = f.text_field field,
-                 value: model.send(field) ? model.send(field).to_s(:ymd) : '',
+                 value: model.send(field) ? model.send(field).to_fs(:ymd) : '',
                  class: 'add-datepicker', label: 'When?'
       = f.submit :save