diff --git a/api/internal/storeLink/octopus.go b/api/internal/storeLink/octopus.go
index 49968007..75f4ebef 100644
--- a/api/internal/storeLink/octopus.go
+++ b/api/internal/storeLink/octopus.go
@@ -479,8 +479,8 @@ func (o *OctopusLink) GetTrainingTask(ctx context.Context, taskId string) (*coll
 	if err != nil {
 		return nil, err
 	}
-	jobresp := (resp).(*octopus.GetTrainJobResp)
-	if !jobresp.Success {
+	jobresp, ok := (resp).(*octopus.GetTrainJobResp)
+	if !jobresp.Success || !ok {
 		return nil, errors.New("get training task failed")
 	}
 	var task collector.Task