diff --git a/layouts/partials/header.html b/layouts/partials/header.html
index 2865bc848c0..8a68a703195 100644
--- a/layouts/partials/header.html
+++ b/layouts/partials/header.html
@@ -99,7 +99,7 @@
         {{- end }}
         </div></div>
       {{- if .Params.chapter }}
-       <div id="chapter">
+        <div id="chapter">
       {{- end }}
         <main id="body-inner">
           <div id="head-tags">