diff --git a/ldms/python/ldmsd/ldmsd_communicator.py b/ldms/python/ldmsd/ldmsd_communicator.py
index 6f043b19d..d92b99336 100644
--- a/ldms/python/ldmsd/ldmsd_communicator.py
+++ b/ldms/python/ldmsd/ldmsd_communicator.py
@@ -88,7 +88,8 @@
                       'prdcr_add': {'req_attr': ['name', 'type', 'xprt', 'host',
                                                  'port', 'reconnect'],
                                     'opt_attr' : [ 'auth', 'perm', 'interval',
-                                                   'rail', 'quota', 'rx_rate' ] },
+                                                   'rail', 'quota', 'rx_rate',
+                                                   'cache_ip' ] },
                       'prdcr_del': {'req_attr': ['name']},
                       'prdcr_start': {'req_attr': ['name'],
                                       'opt_attr': ['interval', 'reconnect']},