diff --git a/.eleventy.js b/.eleventy.js
index 43a41fd83..78a23b722 100644
--- a/.eleventy.js
+++ b/.eleventy.js
@@ -140,6 +140,22 @@ module.exports = function (eleventyConfig) {
 
         return defaultLinkRule(tokens, idx, options, env, self);
       };
+      // Footnote heading fix (till the upstream releases the fix)
+      md.renderer.rules.render_footnote_anchor_name = (
+        tokens,
+        idx,
+        options,
+        env
+      ) => {
+        var n = Number(tokens[idx].meta.id + 1).toString();
+        var prefix = "";
+
+        if (env && typeof env.docId === "string") {
+          prefix = "-" + env.docId + "-";
+        }
+
+        return prefix + n;
+      };
     });
 
   eleventyConfig.setLibrary("md", markdownLib);