diff --git a/NEWS b/NEWS
index 952b6e73..9b087022 100644
--- a/NEWS
+++ b/NEWS
@@ -14,6 +14,7 @@ NEWS ( CHANGELOG and HISTORY )                                     HTMLPurifier
   proprietary one.
 - Don't truncate upon encountering </div> when using DOMLex.  Thanks
   Myrto Christina for finally convincing me to fix this.
+- Update YouTube filter for new code.
 
 4.6.0, released 2013-11-30
 # Secure URI munge hashing algorithm has changed to hash_hmac("sha256", $url, $secret).
diff --git a/library/HTMLPurifier/Filter/YouTube.php b/library/HTMLPurifier/Filter/YouTube.php
index 411519ad..276d8362 100644
--- a/library/HTMLPurifier/Filter/YouTube.php
+++ b/library/HTMLPurifier/Filter/YouTube.php
@@ -17,7 +17,7 @@ class HTMLPurifier_Filter_YouTube extends HTMLPurifier_Filter
     public function preFilter($html, $config, $context)
     {
         $pre_regex = '#<object[^>]+>.+?' .
-            'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s';
+            '(?:http:)?//www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s';
         $pre_replace = '<span class="youtube-embed">\1</span>';
         return preg_replace($pre_regex, $pre_replace, $html);
     }
@@ -51,10 +51,10 @@ class HTMLPurifier_Filter_YouTube extends HTMLPurifier_Filter
     {
         $url = $this->armorUrl($matches[1]);
         return '<object width="425" height="350" type="application/x-shockwave-flash" ' .
-        'data="http://www.youtube.com/' . $url . '">' .
-        '<param name="movie" value="http://www.youtube.com/' . $url . '"></param>' .
+        'data="//www.youtube.com/' . $url . '">' .
+        '<param name="movie" value="//www.youtube.com/' . $url . '"></param>' .
         '<!--[if IE]>' .
-        '<embed src="http://www.youtube.com/' . $url . '"' .
+        '<embed src="//www.youtube.com/' . $url . '"' .
         'type="application/x-shockwave-flash"' .
         'wmode="transparent" width="425" height="350" />' .
         '<![endif]-->' .