diff --git a/sphinx/themes/basic/layout.html b/sphinx/themes/basic/layout.html
index 50feffd71..9163a18a2 100644
--- a/sphinx/themes/basic/layout.html
+++ b/sphinx/themes/basic/layout.html
@@ -120,7 +120,7 @@
     {%- else %}
     <meta http-equiv="Content-Type" content="text/html; charset={{ encoding }}" />
     {%- endif %}
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     {{- metatags }}
     {%- block htmltitle %}
     <title>{{ title|striptags|e }}{{ titlesuffix }}</title>
diff --git a/sphinx/themes/bizstyle/layout.html b/sphinx/themes/bizstyle/layout.html
index c946f8435..603eb2326 100644
--- a/sphinx/themes/bizstyle/layout.html
+++ b/sphinx/themes/bizstyle/layout.html
@@ -20,7 +20,7 @@
 {%- endblock %}
 
 {%- block extrahead %}
-    <meta name="viewport" content="width=device-width,initial-scale=1.0">
+    <meta name="viewport" content="width=device-width,initial-scale=1.0" />
     <!--[if lt IE 9]>
     <script src="_static/css3-mediaqueries.js"></script>
     <![endif]-->