diff --git a/wp-includes/formatting.php b/wp-includes/formatting.php
index 90d014619..57d39f1bc 100644
--- a/wp-includes/formatting.php
+++ b/wp-includes/formatting.php
@@ -2271,7 +2271,7 @@ function esc_sql( $sql ) {
  *
  * @param string $url The URL to be cleaned.
  * @param array $protocols Optional. An array of acceptable protocols.
- *		Defaults to 'http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet' if not set.
+ *		Defaults to 'http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet', 'mms', 'rtsp', 'svn' if not set.
  * @param string $_context Private. Use esc_url_raw() for database usage.
  * @return string The cleaned $url after the 'clean_url' filter is applied.
  */