diff --git a/openstack/object_store/v1/_base.py b/openstack/object_store/v1/_base.py
index 96b620ede..d429b13a1 100644
--- a/openstack/object_store/v1/_base.py
+++ b/openstack/object_store/v1/_base.py
@@ -84,7 +84,10 @@ class BaseResource(resource.Resource):
         self.metadata = dict()
 
         for header in headers:
-            if header.startswith(self._custom_metadata_prefix):
+            # RADOS and other stuff in front may actually lowcase headers
+            if header.lower().startswith(
+                    self._custom_metadata_prefix.lower()
+            ):
                 key = header[len(self._custom_metadata_prefix):].lower()
                 self.metadata[key] = headers[header]
 
diff --git a/openstack/tests/unit/object_store/v1/test_obj.py b/openstack/tests/unit/object_store/v1/test_obj.py
index b4af0c540..30f58a3f4 100644
--- a/openstack/tests/unit/object_store/v1/test_obj.py
+++ b/openstack/tests/unit/object_store/v1/test_obj.py
@@ -116,6 +116,15 @@ class TestObject(base_test_object.BaseTestObject):
         self.assertEqual(self.headers['Content-Type'], sot.content_type)
         self.assertEqual(self.headers['X-Delete-At'], sot.delete_at)
 
+        # Verify that we also properly process lowcased headers
+        # All headers are processed in _base._set_metadata therefore invoke it
+        # here directly
+        sot._set_metadata(headers={"x-object-meta-foo": "bar"})
+        self.assert_no_calls()
+
+        # Attributes from header
+        self.assertEqual("bar", sot.metadata["foo"])
+
     def test_download(self):
         headers = {
             'X-Newest': 'True',