diff --git a/app/models/spree/user.rb b/app/models/spree/user.rb
index c980fd7d6c..5415bb623b 100644
--- a/app/models/spree/user.rb
+++ b/app/models/spree/user.rb
@@ -48,6 +48,7 @@ module Spree
 
     after_create :associate_customers, :associate_orders
 
+    validates :email, 'valid_email_2/email': true, if: :email_changed?
     validate :limit_owned_enterprises
     validates :uid, uniqueness: true, if: lambda { uid.present? }
     validates_email :uid, if: lambda { uid.present? }
diff --git a/spec/models/spree/user_spec.rb b/spec/models/spree/user_spec.rb
index 10c36a3131..2a2caedf18 100644
--- a/spec/models/spree/user_spec.rb
+++ b/spec/models/spree/user_spec.rb
@@ -92,7 +92,7 @@ describe Spree::User do
       expect(user.errors.messages[:email]).to include "is invalid"
     end
 
-    pending "detects backslashes at the end" do
+    it "detects backslashes at the end" do
       user.email = "example@gmail.com\\\\"
       expect(user).to_not be_valid
     end