diff --git a/action/flow/instance/instances.go b/action/flow/instance/instances.go
index 8ec8f709..3a3d1f22 100644
--- a/action/flow/instance/instances.go
+++ b/action/flow/instance/instances.go
@@ -299,7 +299,7 @@ func (inst *IndependentInstance) handleTaskDone(taskBehavior model.TaskBehavior,
 			if ok {
 				//if the flow failed, set the error
 				for _, value := range containerInst.returnData {
-					host.SetOutput(value.Name(), value)
+					host.SetOutput(value.Name(), value.Value())
 				}
 
 				inst.scheduleEval(host)