diff --git a/gossamer_forums.rb b/gossamer_forums.rb
index 0a3b378..734a29a 100644
--- a/gossamer_forums.rb
+++ b/gossamer_forums.rb
@@ -1,5 +1,5 @@
 # gossamer threads migration-import code
-# v0.21.3
+# v0.21.4
 
 require 'mysql2'
 require 'open-uri'
@@ -300,10 +300,10 @@ class GossamerForumsImporter < ImportScripts::Base
   end
 
   # Helper method to upload an attachment / image to Discourse
-  def upload_attachment(user, file, filename, gossamer_url)
+  def upload_attachment(user_id, file, filename, gossamer_url)
     begin
       upload = Upload.create!(
-        user_id: user.id,
+        user_id: user_id,
         original_filename: filename,
         filesize: file.size,
 #        filesize: File.size(file.path),
@@ -320,7 +320,7 @@ class GossamerForumsImporter < ImportScripts::Base
       upload.save!
       upload
     rescue => e
-      puts "Failed to upload attachment #{filename} for user #{user.username}: #{e.message}"
+      puts "Failed to upload attachment #{filename} for user_id #{user_id}: #{e.message}"
       nil
     end
   end