diff --git a/docs/assets/js/ie10-viewport-bug-workaround.js b/docs/assets/js/ie10-viewport-bug-workaround.js
index 479a6ebdae..162dafb9dd 100644
--- a/docs/assets/js/ie10-viewport-bug-workaround.js
+++ b/docs/assets/js/ie10-viewport-bug-workaround.js
@@ -17,7 +17,7 @@
         '@-ms-viewport{width:auto!important}'
       )
     )
-    document.querySelector('head').appendChild(msViewportStyle)
+    document.head.appendChild(msViewportStyle)
   }
 
 })();
diff --git a/docs/getting-started/browsers-devices.md b/docs/getting-started/browsers-devices.md
index ef66ac9a12..2cfaf7301b 100644
--- a/docs/getting-started/browsers-devices.md
+++ b/docs/getting-started/browsers-devices.md
@@ -181,7 +181,7 @@ if (navigator.userAgent.match(/IEMobile\/10\.0/)) {
       '@-ms-viewport{width:auto!important}'
     )
   )
-  document.querySelector('head').appendChild(msViewportStyle)
+  document.head.appendChild(msViewportStyle)
 }
 {% endhighlight %}