diff --git a/routers/repo/grampus.go b/routers/repo/grampus.go
index 03d5f0298..d377aa243 100755
--- a/routers/repo/grampus.go
+++ b/routers/repo/grampus.go
@@ -160,7 +160,7 @@ func grampusTrainJobNewDataPrepare(ctx *context.Context, processType string) err
 		ctx.Data["model_version"] = ctx.Cloudbrain.ModelVersion
 		ctx.Data["ckpt_name"] = ctx.Cloudbrain.CkptName
 		ctx.Data["label_names"] = ctx.Cloudbrain.LabelName
-		ctx.Data["PreTrainModelUrl"] = ctx.Cloudbrain.PreTrainModelUrl
+		ctx.Data["pre_train_model_url"] = ctx.Cloudbrain.PreTrainModelUrl
 		spec, _ := resource.GetCloudbrainSpec(ctx.Cloudbrain.ID)
 		if spec != nil {
 			ctx.Data["spec_id"] = spec.ID