diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 554bec17d6543bcacc73aa321ce763bcb0116b1e..918097449bdf72e07a57c7a23cbd15b88c798e38 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,8 @@
+*   Lookup the attribute name for `restrict_with_error` messages on the
+    model class that defines the association.
+
+    *kuboon*, *Ronak Jangir*
+
 *   Correct query for PostgreSQL 8.2 compatibility.
 
     *Ben Murphy*, *Matthew Draper*
diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb
index f8211ef9fbfcca55c0a820685e178ab45b169dbb..38bda0d2a5fe695f49e3a089c5fc6f31dc952e18 100644
--- a/activerecord/lib/active_record/associations/has_many_association.rb
+++ b/activerecord/lib/active_record/associations/has_many_association.rb
@@ -15,7 +15,7 @@ def handle_dependency
 
         when :restrict_with_error
           unless empty?
-            record = klass.human_attribute_name(reflection.name).downcase
+            record = owner.class.human_attribute_name(reflection.name).downcase
             message = owner.errors.generate_message(:base, :'restrict_dependent_destroy.many', record: record, raise: true) rescue nil
             if message
               ActiveSupport::Deprecation.warn(<<-MESSAGE.squish)
diff --git a/activerecord/lib/active_record/associations/has_one_association.rb b/activerecord/lib/active_record/associations/has_one_association.rb
index 1829453d734b95f5fd817e7d9608be56b148b096..b1e05c32b529de1d9f63ff47ca64deb26183cd2a 100644
--- a/activerecord/lib/active_record/associations/has_one_association.rb
+++ b/activerecord/lib/active_record/associations/has_one_association.rb
@@ -11,7 +11,7 @@ def handle_dependency
 
         when :restrict_with_error
           if load_target
-            record = klass.human_attribute_name(reflection.name).downcase
+            record = owner.class.human_attribute_name(reflection.name).downcase
             message = owner.errors.generate_message(:base, :'restrict_dependent_destroy.one', record: record, raise: true) rescue nil
             if message
               ActiveSupport::Deprecation.warn(<<-MESSAGE.squish)
diff --git a/activerecord/test/cases/associations/has_many_associations_test.rb b/activerecord/test/cases/associations/has_many_associations_test.rb
index 7de5bc01ae6c8219406ee1b0d2e8d5b52cd429db..0beaf0056a85888ad270e2fce853f63d8c96aa9e 100644
--- a/activerecord/test/cases/associations/has_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_associations_test.rb
@@ -1482,6 +1482,25 @@ def test_restrict_with_error
     assert firm.companies.exists?(:name => 'child')
   end
 
+  def test_restrict_with_error_with_locale
+    I18n.backend = I18n::Backend::Simple.new
+    I18n.backend.store_translations 'en', activerecord: {attributes: {restricted_with_error_firm: {companies: 'client companies'}}}
+    firm = RestrictedWithErrorFirm.create!(name: 'restrict')
+    firm.companies.create(name: 'child')
+
+    assert !firm.companies.empty?
+
+    firm.destroy
+
+    assert !firm.errors.empty?
+
+    assert_equal "Cannot delete record because dependent client companies exist", firm.errors[:base].first
+    assert RestrictedWithErrorFirm.exists?(name: 'restrict')
+    assert firm.companies.exists?(name: 'child')
+  ensure
+    I18n.backend.reload!
+  end
+
   def test_included_in_collection
     assert_equal true, companies(:first_firm).clients.include?(Client.find(2))
   end
diff --git a/activerecord/test/cases/associations/has_one_associations_test.rb b/activerecord/test/cases/associations/has_one_associations_test.rb
index d46e7ad235296282197876362eb9dfdc2db37b51..c9d9e29f09e6b0a53116292cec6ae149d3775a5b 100644
--- a/activerecord/test/cases/associations/has_one_associations_test.rb
+++ b/activerecord/test/cases/associations/has_one_associations_test.rb
@@ -219,6 +219,24 @@ def test_restrict_with_error
     assert firm.account.present?
   end
 
+  def test_restrict_with_error_with_locale
+    I18n.backend = I18n::Backend::Simple.new
+    I18n.backend.store_translations 'en', activerecord: {attributes: {restricted_with_error_firm: {account: 'firm account'}}}
+    firm = RestrictedWithErrorFirm.create!(name: 'restrict')
+    firm.create_account(credit_limit: 10)
+
+    assert_not_nil firm.account
+
+    firm.destroy
+
+    assert !firm.errors.empty?
+    assert_equal "Cannot delete record because a dependent firm account exists", firm.errors[:base].first
+    assert RestrictedWithErrorFirm.exists?(name: 'restrict')
+    assert firm.account.present?
+  ensure
+    I18n.backend.reload!
+  end
+
   def test_successful_build_association
     firm = Firm.new("name" => "GlobalMegaCorp")
     firm.save