diff --git a/guide.md b/guide.md
index 837cc58..c588783 100644
--- a/guide.md
+++ b/guide.md
@@ -5,8 +5,8 @@ title: Format Guide
 
 ## Contents
 * [Variables](#variables)
-* [SelectFormat](#selectFormat)
-* [PluralFormat](#pluralFormat)
+* [SelectFormat](#selectformat)
+* [PluralFormat](#pluralformat)
 * [Intl Formatters](#intl-formatters)
 * [Custom Formatters](#custom-formatters)
 * [Nesting](#nesting)