diff --git a/heat/engine/resources/openstack/mistral/cron_trigger.py b/heat/engine/resources/openstack/mistral/cron_trigger.py
index 5f5a702b8..a9ed877a2 100644
--- a/heat/engine/resources/openstack/mistral/cron_trigger.py
+++ b/heat/engine/resources/openstack/mistral/cron_trigger.py
@@ -72,7 +72,7 @@ class CronTrigger(resource.Resource):
             schema={
                 WORKFLOW_NAME: properties.Schema(
                     properties.Schema.STRING,
-                    _('Name of the workflow.'),
+                    _('Name or ID of the workflow.'),
                     required=True,
                     constraints=[
                         constraints.CustomConstraint('mistral.workflow')
@@ -121,16 +121,18 @@ class CronTrigger(resource.Resource):
 
     def handle_create(self):
         workflow = self.properties.get(self.WORKFLOW)
+        name = self._cron_trigger_name()
+        identifier = workflow[self.WORKFLOW_NAME]
+
         args = {
-            'name': self._cron_trigger_name(),
             'pattern': self.properties.get(self.PATTERN),
-            'workflow_name': workflow.get(self.WORKFLOW_NAME),
             'workflow_input': workflow.get(self.WORKFLOW_INPUT),
             'first_time': self.properties.get(self.FIRST_TIME),
             'count': self.properties.get(self.COUNT)
         }
 
-        cron_trigger = self.client().cron_triggers.create(**args)
+        cron_trigger = self.client().cron_triggers.create(name, identifier,
+                                                          **args)
         self.resource_id_set(cron_trigger.name)
 
     def _resolve_attribute(self, name):
diff --git a/heat/tests/openstack/mistral/test_cron_trigger.py b/heat/tests/openstack/mistral/test_cron_trigger.py
index 6519e47fd..5d78ff74c 100644
--- a/heat/tests/openstack/mistral/test_cron_trigger.py
+++ b/heat/tests/openstack/mistral/test_cron_trigger.py
@@ -76,12 +76,12 @@ class MistralCronTriggerTest(common.HeatTestCase):
         ct = self._create_resource('trigger', self.rsrc_defn, self.stack)
         expected_state = (ct.CREATE, ct.COMPLETE)
         self.assertEqual(expected_state, ct.state)
-        args = self.client.cron_triggers.create.call_args[1]
-        self.assertEqual('* * 0 * *', args['pattern'])
-        self.assertEqual('get_first_glance_image', args['workflow_name'])
-        self.assertEqual({}, args['workflow_input'])
-        self.assertEqual('2015-04-08 06:20', args['first_time'])
-        self.assertEqual(3, args['count'])
+        args, kwargs = self.client.cron_triggers.create.call_args
+        self.assertEqual('* * 0 * *', kwargs['pattern'])
+        self.assertEqual('get_first_glance_image', args[1])
+        self.assertEqual({}, kwargs['workflow_input'])
+        self.assertEqual('2015-04-08 06:20', kwargs['first_time'])
+        self.assertEqual(3, kwargs['count'])
         self.assertEqual('my_cron_trigger', ct.resource_id)
 
     def test_attributes(self):