diff --git a/_includes/masthead.html b/_includes/masthead.html
index 8d28d5d8..3fe9fc1c 100644
--- a/_includes/masthead.html
+++ b/_includes/masthead.html
@@ -11,9 +11,10 @@
         {% unless logo_path == empty %}
           <a class="site-logo" href="{{ '/' | relative_url }}"><img src="{{ logo_path | relative_url }}" alt=""></a>
         {% endunless %}
-        <a class="site-title" href="{{ '/' | relative_url }}">{{ site.masthead_title | default: site.title }}
-        {% if site.subtitle %}<div class="site-subtitle">{{ site.subtitle }}</div>{% endif %}
-	</a>
+        <a class="site-title" href="{{ '/' | relative_url }}">
+          {{ site.masthead_title | default: site.title }}
+          {% if site.subtitle %}<span class="site-subtitle">{{ site.subtitle }}</span>{% endif %}
+        </a>
         <ul class="visible-links">
           {%- for link in site.data.navigation.main -%}
             {%- if link.url contains '://' -%}
diff --git a/_sass/minimal-mistakes/_masthead.scss b/_sass/minimal-mistakes/_masthead.scss
index 11aace47..4c5eb153 100644
--- a/_sass/minimal-mistakes/_masthead.scss
+++ b/_sass/minimal-mistakes/_masthead.scss
@@ -54,6 +54,7 @@
 }
 
 .site-subtitle {
+  display: block;
   font-size: $type-size-8;
 }