diff --git a/themes/zero/layouts/_default/si.html b/themes/zero/layouts/_default/si.html
index 8b5c56e..6136be4 100644
--- a/themes/zero/layouts/_default/si.html
+++ b/themes/zero/layouts/_default/si.html
@@ -10,7 +10,9 @@
       <h1><a href="{{ .Permalink }}">{{ .Title }}</a></h1>
     </header>
     <aside>
-      <span class="author">{{ .Params.author }}</span>
+      {{ if .Params.author }}
+      <a class="author" href="{{ .Site.BaseURL }}author/{{ lower .Params.author }}">{{ .Params.author }}</a>
+      {{ end }}
       <span class="date">{{ dateFormat "2006-01-02 15:04" .Date }}</span>
     </aside>
     <section>
diff --git a/themes/zero/layouts/post/summary.html b/themes/zero/layouts/post/summary.html
index 17ecb0e..9f2b297 100644
--- a/themes/zero/layouts/post/summary.html
+++ b/themes/zero/layouts/post/summary.html
@@ -6,7 +6,7 @@
             {{ if .Truncated }}<a class="more" href="{{ .Permalink }}">read more</a>{{ end }}
           </nav>
           <aside>
-            <span class="author">{{ .Params.author }}</span>
+            <a class="author" href="{{ .Site.BaseURL }}author/{{ lower .Params.author }}">{{ .Params.author }}</a>
             <span class="date">{{ dateFormat "2006-01-02 15:04" .Date }}</span>
           </aside>
           <section class="summary">