diff --git a/templates/base.twig b/templates/base.twig
index 02fdc60d3ee36f425bbf099c470092c9f282a638..e366f37522b22418abf8947615ba2f587e22dfa3 100644
--- a/templates/base.twig
+++ b/templates/base.twig
@@ -12,7 +12,7 @@
     {% if jquery and jquery.css %}
     <link rel="stylesheet" media="screen" type="text/css" href="/{{ baseurlpath }}resources/uitheme1.8/jquery-ui.css" />
     {% endif %}
-    {% if isRTL %}<link rel="stylesheet" type="text/css" href="/{{ baseurlpath }}assets/css/src/default-rtl.css" />{% endif %}
+    {%- if isRTL %}<link rel="stylesheet" type="text/css" href="/{{ baseurlpath }}assets/css/src/default-rtl.css" />{% endif -%}
     <meta name="robots" content="noindex, nofollow">
     {% block preload %}{% endblock %}
 </head>