diff --git a/tools/dgeni/src/processors/markdown.ts b/tools/dgeni/src/processors/markdown.ts
index c306155805..5b1a9a51d0 100644
--- a/tools/dgeni/src/processors/markdown.ts
+++ b/tools/dgeni/src/processors/markdown.ts
@@ -8,6 +8,7 @@ import graphql from 'highlight.js/lib/languages/graphql';
 import scss from 'highlight.js/lib/languages/scss';
 import typescript from 'highlight.js/lib/languages/typescript';
 import xml from 'highlight.js/lib/languages/xml';
+import { slugify } from 'markdown-toc/lib/utils';
 import { marked } from 'marked';
 import { markedHighlight } from 'marked-highlight';
 
@@ -74,6 +75,10 @@ marked.use({
       token.href = getLinkUrl(token.href);
     }
   },
+  renderer: {
+    heading: (text: string, level: number, raw: string) =>
+      `<h${level} id="${slugify(text)}">${text}</h${level}>`,
+  },
 });
 
 export class MarkdownCodeProcessor implements Processor {