diff --git a/routers/repo/ai_model_manage.go b/routers/repo/ai_model_manage.go
index 5170c889d..ad06dc031 100644
--- a/routers/repo/ai_model_manage.go
+++ b/routers/repo/ai_model_manage.go
@@ -161,7 +161,7 @@ func downloadModelFromCloudBrainTwo(modelUUID string, jobName string, parentDir
 	if len(modelDbResult) == 0 {
 		return "", 0, errors.New("cannot create model, as model is empty.")
 	}
-	prefix := strings.TrimPrefix(path.Join(setting.TrainJobModelPath, jobName, setting.OutPutPath, parentDir), "/")
+	prefix := strings.TrimPrefix(path.Join(setting.TrainJobModelPath, jobName, setting.OutPutPath, parentDir), "/") + "/"
 	for _, modelFile := range modelDbResult {
 		destKeyNamePrefix := "aimodels/" + models.AttachmentRelativePath(modelUUID) + "/"
 		log.Info("copy file, bucket=" + setting.Bucket + ", src keyname=" + prefix + modelFile.FileName)