diff --git a/confluent_client/confluent/client.py b/confluent_client/confluent/client.py
index abf7c577..42face02 100644
--- a/confluent_client/confluent/client.py
+++ b/confluent_client/confluent/client.py
@@ -53,6 +53,7 @@ def _parseserver(string):
 
 class Command(object):
     def __init__(self, server=None):
+        self._prevdict = None
         self._prevkeyname = None
         self.connection = None
         self._currnoderange = None