diff --git a/swift/common/middleware/s3api/s3request.py b/swift/common/middleware/s3api/s3request.py
index f34c06aabc..a144ccc645 100644
--- a/swift/common/middleware/s3api/s3request.py
+++ b/swift/common/middleware/s3api/s3request.py
@@ -700,6 +700,9 @@ class S3Request(swob.Request):
             raise S3NotImplemented('Transfering payloads in multiple chunks '
                                    'using aws-chunked is not supported.')
 
+        if 'x-amz-tagging' in self.headers:
+            raise S3NotImplemented('Object tagging is not supported.')
+
     @property
     def body(self):
         """
diff --git a/test/unit/common/middleware/s3api/test_s3api.py b/test/unit/common/middleware/s3api/test_s3api.py
index c2463ac714..02b4d5237e 100644
--- a/test/unit/common/middleware/s3api/test_s3api.py
+++ b/test/unit/common/middleware/s3api/test_s3api.py
@@ -487,6 +487,9 @@ class TestS3ApiMiddleware(S3ApiTestCase):
         # > Signature Version 4 streaming API.
         self._test_unsupported_header('Content-Encoding', 'aws-chunked,gzip')
 
+    def test_object_tagging(self):
+        self._test_unsupported_header('x-amz-tagging')
+
     def _test_unsupported_resource(self, resource):
         req = Request.blank('/error?' + resource,
                             environ={'REQUEST_METHOD': 'GET',