diff --git a/utils/emotion2vec_utils.py b/utils/emotion2vec_utils.py
index bd15afb..a0acaa9 100644
--- a/utils/emotion2vec_utils.py
+++ b/utils/emotion2vec_utils.py
@@ -19,7 +19,7 @@ class EmotionRecognition:
     5: other
     6: sad
     7: surprised
-    8: unknown
+    8: <unk>        指unknown
     return :  
     [{"emotion": "angry", "weight": },
      {"emotion": "disgusted", "weight": },