diff --git a/specs/merge/client_settings.md b/specs/merge/client_settings.md
index 3ff897560..a8ca633ff 100644
--- a/specs/merge/client_settings.md
+++ b/specs/merge/client_settings.md
@@ -1,3 +1,12 @@
+<!-- START doctoc generated TOC please keep comment here to allow auto update -->
+<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
+**Table of Contents**  *generated with [DocToc](https://github.com/thlorenz/doctoc)*
+
+- [The Merge -- Client Settings](#the-merge----client-settings)
+    - [Override terminal total difficulty](#override-terminal-total-difficulty)
+
+<!-- END doctoc generated TOC please keep comment here to allow auto update -->
+
 # The Merge -- Client Settings
 
 **Notice**: This document is a work-in-progress for researchers and implementers.