diff --git a/confluent_osdeploy/common/opt/confluent/bin/apiclient b/confluent_osdeploy/common/opt/confluent/bin/apiclient
index 5df24a10..31f5322a 100644
--- a/confluent_osdeploy/common/opt/confluent/bin/apiclient
+++ b/confluent_osdeploy/common/opt/confluent/bin/apiclient
@@ -13,7 +13,7 @@ import time
 class InvalidApiKey(Exception):
     pass
 
-def get_apikey(nodename, mgr, mgr6):
+def get_apikey(nodename, mgr, mgr6=None):
     apikey = ""
     if os.path.exists('/etc/confluent/confluent.apikey'):
         apikey = open('/etc/confluent/confluent.apikey').read().strip()