diff --git a/app/mailers/admin_mailer.rb b/app/mailers/admin_mailer.rb
index 990b92c337..385e53c657 100644
--- a/app/mailers/admin_mailer.rb
+++ b/app/mailers/admin_mailer.rb
@@ -1,8 +1,6 @@
 # frozen_string_literal: true
 
 class AdminMailer < ApplicationMailer
-  layout 'plain_mailer'
-
   helper :accounts
   helper :languages
 
diff --git a/app/views/layouts/plain_mailer.html.haml b/app/views/layouts/plain_mailer.html.haml
deleted file mode 100644
index 0a90f092c5..0000000000
--- a/app/views/layouts/plain_mailer.html.haml
+++ /dev/null
@@ -1 +0,0 @@
-= yield