diff --git a/docs/index.rst b/docs/index.rst
index eacc165..a277886 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -272,6 +272,8 @@ API Documentation
 
 .. autofunction:: sort_query
 .. autofunction:: escape_like
+.. autofunction:: naturally_equivalent
+.. autofunction:: has_changes
 .. autofunction:: non_indexed_foreign_keys
 .. autofunction:: is_indexed_foreign_key
 .. autofunction:: identity
diff --git a/sqlalchemy_utils/types/country.py b/sqlalchemy_utils/types/country.py
index b4c1efd..8618825 100644
--- a/sqlalchemy_utils/types/country.py
+++ b/sqlalchemy_utils/types/country.py
@@ -23,6 +23,9 @@ class Country(object):
         else:
             return NotImplemented
 
+    def __ne__(self, other):
+        return not (self == other)
+
     def __repr__(self):
         return '%s(%r)' % (self.__class__.__name__, self.code)
 
diff --git a/tests/types/test_country.py b/tests/types/test_country.py
index 45ed25b..0e3d05b 100644
--- a/tests/types/test_country.py
+++ b/tests/types/test_country.py
@@ -22,6 +22,10 @@ class TestCountry(object):
         assert u'fi' == Country(u'fi')
         assert Country(u'fi') == Country(u'fi')
 
+    def test_non_equality_operator(self):
+        assert Country(u'fi') != u'sv'
+        assert not (Country(u'fi') != u'fi')
+
 
 class TestCountryType(TestCase):
     def create_models(self):