diff --git a/server/cros/update_engine/update_engine_test.py b/server/cros/update_engine/update_engine_test.py
index 04de5c8..c2a6913 100644
--- a/server/cros/update_engine/update_engine_test.py
+++ b/server/cros/update_engine/update_engine_test.py
@@ -757,11 +757,6 @@
         # Use the same lab devserver to also handle the update.
         url = self._autotest_devserver.get_update_url(build)
 
-        # Delta payloads get staged into the 'au_nton' directory of the
-        # build itself. So we need to append this at the end of the update
-        # URL to get the delta payload.
-        if not full_payload:
-            url += '/au_nton'
         logging.info('Update URL: %s', url)
         return url