diff --git a/routers/repo/ai_model_convert.go b/routers/repo/ai_model_convert.go
index 4a9cb0fdd..c36e19914 100644
--- a/routers/repo/ai_model_convert.go
+++ b/routers/repo/ai_model_convert.go
@@ -550,6 +550,9 @@ func ShowModelConvertInfo(ctx *context.Context) {
 
 	job, err := models.QueryModelConvertById(ctx.Query("ID"))
 	if err == nil {
+		if job.TrainJobDuration == "" {
+			job.TrainJobDuration = "00:00:00"
+		}
 		ctx.Data["task"] = job
 	} else {
 		ctx.ServerError("Not found task.", err)