diff --git a/layouts/_default/single.html b/layouts/_default/single.html
index 4dc326a..dee40d1 100644
--- a/layouts/_default/single.html
+++ b/layouts/_default/single.html
@@ -2,6 +2,11 @@
     <header class="content__header">
         <h1>{{ .Title | markdownify }}</h1>
     </header>
+    {{ if .Params.toc }}
+    <aside>
+        {{ .TableOfContents }}
+    </aside>
+    {{ end }}
     <div class="content__body">
         {{ .Content }}
     </div>