diff --git a/app/validators/typoed_email_validator.rb b/app/validators/typoed_email_validator.rb
index d4f4b84a..dc80bb2a 100644
--- a/app/validators/typoed_email_validator.rb
+++ b/app/validators/typoed_email_validator.rb
@@ -18,6 +18,7 @@ class TypoedEmailValidator < ActiveModel::EachValidator
       gmaik.com
       gmail.cm
       gmail.co
+      gmail.co.uk
       gmaile.com
       gmaill.com
       gmali.com
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index f0e3803c..3250d212 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -84,6 +84,7 @@ RSpec.describe User, type: :model do
     include_examples "invalid email", "fritz.fantom@gmaik.com"
     include_examples "invalid email", "fritz.fantom@gmail.cm"
     include_examples "invalid email", "fritz.fantom@gmail.co"
+    include_examples "invalid email", "fritz.fantom@gmail.co.uk"
     include_examples "invalid email", "fritz.fantom@gmailcom"
     include_examples "invalid email", "fritz.fantom@gmaile.com"
     include_examples "invalid email", "fritz.fantom@gmaill.com"