diff --git a/utils/avg_model.py b/utils/avg_model.py
index 1fc00cb6..7c05ec78 100755
--- a/utils/avg_model.py
+++ b/utils/avg_model.py
@@ -25,8 +25,8 @@ def main(args):
     paddle.set_device('cpu')
 
     val_scores = []
-    beat_val_scores = []
-    selected_epochs = []
+    beat_val_scores = None
+    selected_epochs = None
 
     jsons = glob.glob(f'{args.ckpt_dir}/[!train]*.json')
     jsons = sorted(jsons, key=os.path.getmtime, reverse=True)
@@ -80,9 +80,10 @@ def main(args):
         data = json.dumps({
             "mode": 'val_best' if args.val_best else 'latest',
             "avg_ckpt": args.dst_model,
-            "ckpt": path_list,
-            "epoch": selected_epochs.tolist(),
-            "val_loss": beat_val_scores.tolist(),
+            "val_loss_mean": np.mean(beat_val_scores),
+            "ckpts": path_list,
+            "epochs": selected_epochs.tolist(),
+            "val_losses": beat_val_scores.tolist(),
         })
         f.write(data + "\n")