diff --git a/SAS/ResourceAssignment/ResourceAssignmentEstimator/service.py b/SAS/ResourceAssignment/ResourceAssignmentEstimator/service.py
index 66b4b27b9f3d97e1f766a37ae44f1ff2a6250836..a6b9d4cbcccc90b84e57acee8974cbbd8a0bad62 100644
--- a/SAS/ResourceAssignment/ResourceAssignmentEstimator/service.py
+++ b/SAS/ResourceAssignment/ResourceAssignmentEstimator/service.py
@@ -85,7 +85,7 @@ class ResourceEstimatorHandler(MessageHandlerInterface):
             ]}}}}}
         """
         logger.info('get_estimated_resources on: %s' % specification_tree)
-        return self.get_subtree_estimate(specification_tree):
+        return self.get_subtree_estimate(specification_tree)
 
 def createService(busname=DEFAULT_BUSNAME, servicename=DEFAULT_SERVICENAME, broker=None):
     return Service(servicename=servicename,