diff --git a/notice/api/3.0.md b/notice/api/3.0.md
index a102784..413c4b6 100644
--- a/notice/api/3.0.md
+++ b/notice/api/3.0.md
@@ -39,9 +39,9 @@ Plan
 
 - [**1** Permissions : AuthSystem](#1---permissions--authsystem)
 - [**2** Core implementation](#2---core-implementation)
-	- [Classes](#2classes)
-	- [Methods](#2methods)
-	- [Method arguments](#2Method-arguments)
+	- [Classes](#classes)
+	- [Methods](#methods)
+	- [Method arguments](#Method-arguments)
 	- [Return statement](#return-statement)
 	- [Example](#example)