diff --git a/drivers/hmis/app/models/hmis/file.rb b/drivers/hmis/app/models/hmis/file.rb
index 143e5e2de3..6f421cde79 100644
--- a/drivers/hmis/app/models/hmis/file.rb
+++ b/drivers/hmis/app/models/hmis/file.rb
@@ -4,9 +4,12 @@
 # License detail: https://github.com/greenriver/hmis-warehouse/blob/production/LICENSE.md
 ###
 
-class Hmis::File < GrdaWarehouse::File
+class Hmis::File < GrdaWarehouseBase
+  self.table_name = :files
   include ClientFileBase
   include ::Hmis::Hud::Concerns::FormSubmittable
+
+  acts_as_paranoid
   has_paper_trail(
     meta: {
       enrollment_id: :enrollment_id,
@@ -17,6 +20,12 @@ class Hmis::File < GrdaWarehouse::File
 
   acts_as_taggable
 
+  # Need to set 'type' directly because we don't subclass GrdaWarehouse::File (because we needed to define has_paper_trail differently)
+  after_initialize :set_default_type, if: :new_record?
+  def set_default_type
+    self.type ||= self.class.sti_name
+  end
+
   # These are not used, they're here so that we won't get an error trying to get/set the data source
   attr_accessor :data_source_id
   def data_source
@@ -28,8 +37,6 @@ def data_source
     :date_updated,
   ].freeze
 
-  self.table_name = :files
-
   belongs_to :enrollment, class_name: '::Hmis::Hud::Enrollment', optional: true
   belongs_to :client, class_name: '::Hmis::Hud::Client'
   belongs_to :user, class_name: 'Hmis::User', optional: true