diff --git a/doc/editor/Advanced.html b/doc/editor/Advanced.html
index 7ab813c2..505739d9 100644
--- a/doc/editor/Advanced.html
+++ b/doc/editor/Advanced.html
@@ -26,7 +26,7 @@ here will be necessary to master, if you are to move on.</p>
 town is town 1, and so on. The coordinate system for Blades of Exile towns and dungeons
 starts with X = 0, Y = 0 (also written (0,0) ) in the upper left.</p>
 
-<h2>Stuff Done Flags</h2>
+<h2 id="sdfs">Stuff Done Flags</h2>
 
 <p>The single most important concept to master in scenario design is the Stuff Done Flag.
 The Stuff Done Flags are numbers the game keeps track of, which are used by the game to
diff --git a/doc/editor/Contents.html b/doc/editor/Contents.html
index 68a4bb1b..47502503 100644
--- a/doc/editor/Contents.html
+++ b/doc/editor/Contents.html
@@ -43,6 +43,9 @@
 <li><a href='Monsters.html'>Editing Monster Types</a></li>
 <li><a href='Items.html'>Editing Items</a></li>
 <li><a href='Advanced.html'>Advanced Topics Introduction</a></li>
+<ul>
+<li><a href='Advanced.html#sdfs'>Stuff Done Flags</a></li>
+</ul>
 <li><a href='Specials.html'>Special Encounters</a></li>
 <ul>
 <li><a href='Specials.html#intro'>Special Nodes</a></li>