diff --git a/utilities/src/d1_util/download_mn_objects.py b/utilities/src/d1_util/download_mn_objects.py
index 2bca4f86..f4561911 100644
--- a/utilities/src/d1_util/download_mn_objects.py
+++ b/utilities/src/d1_util/download_mn_objects.py
@@ -36,6 +36,7 @@
 import sys
 import urllib.parse
 
+import d1_client.mnclient
 import d1_common.const
 import d1_common.env
 # D1