diff --git a/framework/db/Connection.php b/framework/db/Connection.php
index 797508a..f71b940 100644
--- a/framework/db/Connection.php
+++ b/framework/db/Connection.php
@@ -517,7 +517,7 @@ class Connection extends Component
 	public function quoteSql($sql)
 	{
 		$db = $this;
-		return preg_replace_callback('/(\\{\\{([\w\-\. ]+)\\}\\}|\\[\\[([\w\-\. ]+)\\]\\])/',
+		return preg_replace_callback('/(\\{\\{([%\w\-\. ]+)\\}\\}|\\[\\[([\w\-\. ]+)\\]\\])/',
 			function($matches) use($db) {
 				if (isset($matches[3])) {
 					return $db->quoteColumnName($matches[3]);