diff --git a/routers/repo/ai_model_manage.go b/routers/repo/ai_model_manage.go
index 0fdf698c0..02aa94c39 100644
--- a/routers/repo/ai_model_manage.go
+++ b/routers/repo/ai_model_manage.go
@@ -144,7 +144,7 @@ func SaveModel(ctx *context.Context) {
 func downloadModelFromCloudBrainTwo(modelUUID string, jobName string, parentDir string, trainUrl string) (string, int64, error) {
 	objectkey := strings.TrimPrefix(path.Join(setting.TrainJobModelPath, jobName, setting.OutPutPath, parentDir), "/")
 	if trainUrl != "" {
-		objectkey = trainUrl[len(setting.Bucket)+1:]
+		objectkey = trainUrl[len(setting.Bucket)+2:]
 	}
 
 	modelDbResult, err := storage.GetOneLevelAllObjectUnderDir(setting.Bucket, objectkey, "")