diff --git a/lib/main/build-site.js b/lib/main/build-site.js
index ab35da817..ae4354635 100644
--- a/lib/main/build-site.js
+++ b/lib/main/build-site.js
@@ -34,11 +34,19 @@ const exts = _.keys(highlights);
 /**
  * Converts Lodash method references into documentation links.
  *
+ * Searches for inline code references matching `_.word` (e.g., `_.map`, `_.filter`)
+ * in documentation body text and wraps them in anchor links. Excludes code within
+ * headers as those already have proper anchors.
+ *
  * @private
  * @param {Object} $ The Cheerio object.
+ *
+ * @example
+ * // Body text: <code>_.map</code> → <a href="#map"><code>_.map</code></a>
+ * // Headers: <h3><code>_.VERSION</code></h3> → unchanged (excluded)
  */
 function autoLink($) {
-  $('.doc-container code').each(function() {
+  $('.doc-container code:not(:header code)').each(function() {
     const $code = $(this);
     const html = $code.html();
     if (/^_\.\w+$/.test(html)) {
@@ -176,9 +184,16 @@ function build() {
     .readFileSync(readmePath, 'utf8')
     // Uncomment docdown HTML hints.
     .replace(/(<)!--\s*|\s*--(>)/g, '$1$2')
-    // Convert source and npm package links to anchors.
-    .replace(/\[source\]\(([^)]+)\) \[npm package\]\(([^)]+)\)/g, (match, href1, href2) =>
-      `<p><a href="${ href1 }">source</a> <a href="${ href2 }">npm package</a></p>`
+    // Convert docdown-generated [source] and [npm package] links to HTML.
+    // These appear as markdown immediately after h3 tags, which marky-markdown
+    // doesn't process (it treats content after HTML blocks as plain text).
+    // Pattern 1: Dual links for methods with npm packages.
+    .replace(/(<h3[^>]*>.*?<\/h3>)\n\[source\]\(([^)]+)\) \[npm package\]\(([^)]+)\)/g, (match, h3, href1, href2) =>
+      `${h3}\n<p><a href="${ href1 }">source</a> <a href="${ href2 }">npm package</a></p>`
+    )
+    // Pattern 2: Standalone [source] links for properties without npm packages.
+    .replace(/(<h3[^>]*>.*?<\/h3>)\n\[source\]\(([^)]+)\)(?! \[npm package\])/g, (match, h3, href) =>
+      `${h3}\n<p><a href="${ href }">source</a></p>`
     );
 
   const $ = cheerio.load(marky(markdown, {