diff --git a/workflow/rocoto/tasks.py b/workflow/rocoto/tasks.py
index e18b45ef28..4f97ef1faa 100644
--- a/workflow/rocoto/tasks.py
+++ b/workflow/rocoto/tasks.py
@@ -226,7 +226,7 @@ def get_resource(self, task_name):
             native = '--export=NONE'
             if task_config['RESERVATION'] != "":
                 native += '' if task_name in Tasks.SERVICE_TASKS else ' --reservation=' + task_config['RESERVATION']
-            if task_config['CLUSTERS'] != "":
+            if task_config['CLUSTERS'] not in ["", '@CLUSTERS@']:
                 native += ' --clusters=' + task_config['CLUSTERS']
 
         queue = task_config['QUEUE_SERVICE'] if task_name in Tasks.SERVICE_TASKS else task_config['QUEUE']