diff --git a/sphinx_rtd_theme/layout.html b/sphinx_rtd_theme/layout.html
index ee62dd613..996fd5422 100644
--- a/sphinx_rtd_theme/layout.html
+++ b/sphinx_rtd_theme/layout.html
@@ -23,10 +23,18 @@
   <link rel="stylesheet" href="{{ pathto('_static/' + style, 1) }}" type="text/css" />
   <link rel="stylesheet" href="{{ pathto('_static/pygments.css', 1) }}" type="text/css" />
   {%- for css in css_files %}
-    {%- if css|attr("rel") %}
-      <link rel="{{ css.rel }}" href="{{ pathto(css.filename, 1) }}" type="text/css"{% if css.title is not none %} title="{{ css.title }}"{% endif %} />
+    {%- if sphinx_version >= "1.8.0" %}
+      {%- if css|attr("filename") %}
+        {{ css_tag(css) }}
+      {%- else %}
+        <link rel="stylesheet" href="{{ pathto(css, 1) }}" type="text/css" />
+      {%- endif %}
     {%- else %}
-      <link rel="stylesheet" href="{{ pathto(css, 1) }}" type="text/css" />
+      {%- if css|attr("rel") %}
+        <link rel="{{ css.rel }}" href="{{ pathto(css.filename, 1) }}" type="text/css"{% if css.title is not none %} title="{{ css.title }}"{% endif %} />
+      {%- else %}
+        <link rel="stylesheet" href="{{ pathto(css, 1) }}" type="text/css" />
+      {%- endif %}
     {%- endif %}
   {%- endfor %}