diff --git a/app/models/mod_action.rb b/app/models/mod_action.rb
index 393a75b2b..cbec8de4d 100644
--- a/app/models/mod_action.rb
+++ b/app/models/mod_action.rb
@@ -20,7 +20,7 @@ class ModAction < ApplicationRecord
     user_level_change: 7,
     user_approval_privilege: 8,
     user_upload_privilege: 9,
-    user_account_upgrade: 19,
+    user_account_upgrade: 19, # XXX unused
     user_feedback_update: 21,
     user_feedback_delete: 22,
     post_delete: 42,
diff --git a/app/models/user_upgrade.rb b/app/models/user_upgrade.rb
index c5a369293..2eaead91b 100644
--- a/app/models/user_upgrade.rb
+++ b/app/models/user_upgrade.rb
@@ -108,7 +108,6 @@ class UserUpgrade < ApplicationRecord
 
         if payment_status == "paid"
           upgrade_recipient!
-          create_mod_action!
           dmail_recipient!
           dmail_purchaser!
           update!(status: :complete)
@@ -122,10 +121,6 @@ class UserUpgrade < ApplicationRecord
       recipient.update!(level: level)
     end
 
-    def create_mod_action!
-      ModAction.log(%{"#{recipient.name}":#{Routes.user_path(recipient)} level changed #{User.level_string(recipient.level_before_last_save)} -> #{recipient.level_string}}, :user_account_upgrade, purchaser)
-    end
-
     def dmail_recipient!
       if is_gift?
         body = "Congratulations, your account has been upgraded to #{level_string} by <@#{purchaser.name}>. Enjoy!"
diff --git a/test/unit/user_upgrade_test.rb b/test/unit/user_upgrade_test.rb
index 124cebf22..99d9ccf96 100644
--- a/test/unit/user_upgrade_test.rb
+++ b/test/unit/user_upgrade_test.rb
@@ -31,12 +31,6 @@ class UserUpgradeTest < ActiveSupport::TestCase
             assert_equal("complete", @user_upgrade.status)
           end
 
-          should "log an account upgrade modaction" do
-            assert_difference("ModAction.user_account_upgrade.count") do
-              @user_upgrade.process_upgrade!("paid")
-            end
-          end
-
           should "send the recipient a dmail" do
             assert_difference("@user_upgrade.recipient.dmails.received.count") do
               @user_upgrade.process_upgrade!("paid")