diff --git a/src/resolvers/md2html.ts b/src/resolvers/md2html.ts
index 0c9d572c..b221750f 100644
--- a/src/resolvers/md2html.ts
+++ b/src/resolvers/md2html.ts
@@ -145,7 +145,7 @@ function getHref(root: string, path: string, href: string) {
         href = href.replace(/\.(md|ya?ml)$/gi, '.html');
     } else if (!/.+\.\w+$/gi.test(href)) {
         // TODO: isFileExists index.md or index.yaml
-        href = href + '/index.html';
+        href = href + (href.endsWith('/') ? '' : '/') + 'index.html';
     }
 
     return href;
diff --git a/src/utils/toc.ts b/src/utils/toc.ts
index 2d33599e..9f903039 100644
--- a/src/utils/toc.ts
+++ b/src/utils/toc.ts
@@ -49,6 +49,10 @@ export function transformToc(toc: YfmToc, tocDir: string) {
             return href;
         }
 
+        if (href.endsWith('/')) {
+            href += 'index.yaml';
+        }
+
         const fileExtension: string = extname(href);
         const filename: string = basename(href, fileExtension) + '.html';