diff --git a/mongo_connector/doc_managers/formatters.py b/mongo_connector/doc_managers/formatters.py
index d5d6fca1..97874629 100644
--- a/mongo_connector/doc_managers/formatters.py
+++ b/mongo_connector/doc_managers/formatters.py
@@ -87,7 +87,7 @@ def transform_value(self, value):
             # Just include body of binary data without subtype
             return base64.b64encode(value).decode()
         elif isinstance(value, UUID):
-            return value.hex
+            return value
         elif isinstance(value, (int, long, float)):
             if isnan(value):
                 raise ValueError("nan")
diff --git a/tests/test_formatters.py b/tests/test_formatters.py
index 64c5d3a7..5b85a922 100644
--- a/tests/test_formatters.py
+++ b/tests/test_formatters.py
@@ -65,7 +65,7 @@ def test_types(self):
         self.assertEqual(trans(self.date), self.date)
 
         # UUID
-        self.assertEqual(trans(self.xuuid), self.xuuid.hex)
+        self.assertEqual(trans(self.xuuid), self.xuuid)
 
         # Other type
         self.assertEqual(trans(self.oid), str(self.oid))