diff --git a/app/services/temporary_field_migration_service.rb b/app/services/temporary_field_migration_service.rb
index 14e94610..acf73468 100644
--- a/app/services/temporary_field_migration_service.rb
+++ b/app/services/temporary_field_migration_service.rb
@@ -1,7 +1,7 @@
 class TemporaryFieldMigrationService < Service
   def self.migrate_fields_for_content(content_model, user)
     return unless content_model.present? && user.present?
-    return if content_model.persisted? && content_model.updated_at > 'September 1, 2018'.to_datetime1
+    return if content_model.persisted? && content_model.updated_at > 'September 1, 2018'.to_datetime
 
     # todo we might be able to do this in a single left outer join
     attribute_categories = content_model.class.attribute_categories(content_model.user)