diff --git a/wsme/tests/test_types.py b/wsme/tests/test_types.py
index a0a3cd1..c3805a2 100644
--- a/wsme/tests/test_types.py
+++ b/wsme/tests/test_types.py
@@ -345,8 +345,10 @@ Value: 'v3'. Value should be one of: v., v.",
 
     def test_validate_uuid_type(self):
         v = types.UuidType()
-        v.validate('6a0a707c-45ef-4758-b533-e55adddba8ce')
-        v.validate('6a0a707c45ef4758b533e55adddba8ce')
+        self.assertEqual(v.validate('6a0a707c-45ef-4758-b533-e55adddba8ce'),
+                         '6a0a707c-45ef-4758-b533-e55adddba8ce')
+        self.assertEqual(v.validate('6a0a707c45ef4758b533e55adddba8ce'),
+                         '6a0a707c-45ef-4758-b533-e55adddba8ce')
         self.assertRaises(ValueError, v.validate, '')
         self.assertRaises(ValueError, v.validate, 'foo')
         self.assertRaises(ValueError, v.validate,
diff --git a/wsme/types.py b/wsme/types.py
index 9701a61..623996b 100644
--- a/wsme/types.py
+++ b/wsme/types.py
@@ -270,7 +270,7 @@ class UuidType(UserType):
     @staticmethod
     def validate(value):
         try:
-            uuid.UUID(value)
+            return six.text_type((uuid.UUID(value)))
         except (TypeError, ValueError, AttributeError):
             error = 'Value should be UUID format'
             raise ValueError(error)