diff --git a/doc/doc_en/environment_en.md b/doc/doc_en/environment_en.md
index a5176d5d359425ecf5d6640e9a9c797189f364f1..96a46cce3010934689e8d95985ca434f49d18886 100644
--- a/doc/doc_en/environment_en.md
+++ b/doc/doc_en/environment_en.md
@@ -1,7 +1,5 @@
 # Environment Preparation
 
-[Environment Preparation](#Environment Preparation)
-
 * [1. Python Environment Setup](#1)
   + [1.1 Windows](#1.1)
   + [1.2 Mac](#1.2)