diff --git a/readme.md b/readme.md
index d4d244a..36fc386 100644
--- a/readme.md
+++ b/readme.md
@@ -9,7 +9,7 @@ Intro.
 * [Where](#where)
 * [When](#when)
 
-## 1 Why
+## 1 [Why](#1-why)
 
 ## 2 How