diff --git a/tools/doc/html.js b/tools/doc/html.js
index 53b14e1e0899f7..d35fd47b601e09 100644
--- a/tools/doc/html.js
+++ b/tools/doc/html.js
@@ -220,7 +220,7 @@ function preprocessElements({ filename }) {
 
           // Do not link to the section we are already in.
           const noLinking = filename.includes('documentation') &&
-            heading !== null && heading.children[0].value === 'Stability Index';
+            heading !== null && heading.children[0].value === 'Stability index';
 
           // Collapse blockquote and paragraph into a single node
           node.type = 'paragraph';