diff --git a/vitrageclient/v1/alarm.py b/vitrageclient/v1/alarm.py
index 9c893c4..dee8c85 100644
--- a/vitrageclient/v1/alarm.py
+++ b/vitrageclient/v1/alarm.py
@@ -17,7 +17,7 @@ class Alarm(object):
     def __init__(self, api):
         self.api = api
 
-    def list(self, vitrage_id, all_tenants):
+    def list(self, vitrage_id, all_tenants='0'):
         """Get a all alarms on entity
 
         :param vitrage_id: the id for the entity
diff --git a/vitrageclient/v1/rca.py b/vitrageclient/v1/rca.py
index 0368796..7c54ca5 100644
--- a/vitrageclient/v1/rca.py
+++ b/vitrageclient/v1/rca.py
@@ -17,7 +17,7 @@ class Rca(object):
     def __init__(self, api):
         self.api = api
 
-    def get(self, alarm_id, all_tenants):
+    def get(self, alarm_id, all_tenants='0'):
         """Get RCA for an alarm
 
         :param alarm_id: the id of the alarm