diff --git a/confluent_server/confluent/auth.py b/confluent_server/confluent/auth.py
index e01e8826..9521bed0 100644
--- a/confluent_server/confluent/auth.py
+++ b/confluent_server/confluent/auth.py
@@ -48,6 +48,7 @@ _allowedbyrole = {
             '/node*/media/uploads/',
             '/node*/inventory/firmware/updates/*',
             '/node*/suppport/servicedata*',
+            '/node*/attributes/expression',
         ],
         'update': [
             '/discovery/*',