diff --git a/lib/server/docs.js b/lib/server/docs.js
index f5c7ceb6b389..896d3e1ec994 100644
--- a/lib/server/docs.js
+++ b/lib/server/docs.js
@@ -38,10 +38,18 @@ function getFile(metadata) {
 
 function mdToHtmlify(oldContent, mdToHtml, metadata) {
   let content = oldContent;
+  const mdLinks = [];
+
+  // find any links to markdown files
   const regex = /(?:\]\()(?:\.\/)?([^'")\]\s>]+\.md)/g;
   let match = regex.exec(content);
   while (match !== null) {
-    const mdLink = match[1];
+    mdLinks.push(match[1]);
+    match = regex.exec(content);
+  }
+
+  // replace to their website html links
+  new Set(mdLinks).forEach(mdLink => {
     let htmlLink = mdToHtml[mdLink];
     if (htmlLink) {
       htmlLink = getPath(htmlLink, siteConfig.cleanUrl);
@@ -57,8 +65,7 @@ function mdToHtmlify(oldContent, mdToHtml, metadata) {
         `](${htmlLink}`
       );
     }
-    match = regex.exec(content);
-  }
+  });
   return content;
 }