diff --git a/docs/en/algorithm_introduction/metric_learning_en.md b/docs/en/algorithm_introduction/metric_learning_en.md
index 8eaa91036f037d1855f197a3fea41f7e8a54853f..7e50b7b9ed280d05cf30eb416816a4305b69f796 100644
--- a/docs/en/algorithm_introduction/metric_learning_en.md
+++ b/docs/en/algorithm_introduction/metric_learning_en.md
@@ -1,6 +1,7 @@
 # Metric Learning
 
-## Contents
+## Catalogue
+
 - [1.Introduction](#1)
 - [2.Applications](#2)
 - [3.Algorithms](#3)