diff --git a/doc/doc_en/knowledge_distillation_en.md b/doc/doc_en/knowledge_distillation_en.md
index 9094b660825a97bc612680af8f3e2c25298433c7..a13e6a6f130c57eb9f052d9909ecf9ae2319a226 100755
--- a/doc/doc_en/knowledge_distillation_en.md
+++ b/doc/doc_en/knowledge_distillation_en.md
@@ -1,6 +1,7 @@
+<a name="0"></a>
 # Knowledge Distillation
 
-- [Knowledge Distillation](#Knowledge Distillation)
+- [Knowledge Distillation](#0)
   + [1. Introduction](#1)
     + [1.1 Introduction to Knowledge Distillation](#11)
     + [1.2 Introduction to PaddleOCR Knowledge Distillation](#12)