diff --git a/phpBB/includes/bbcode.php b/phpBB/includes/bbcode.php
index f57bc7a394..a7928da605 100644
--- a/phpBB/includes/bbcode.php
+++ b/phpBB/includes/bbcode.php
@@ -252,7 +252,7 @@ function bbencode_first_pass($text, $uid)
 
 	// [QUOTE] and [/QUOTE] for posting replies with quote, or just for quoting stuff.
 	$text = bbencode_first_pass_pda($text, $uid, '[quote]', '[/quote]', '', false, '');
-	$text = bbencode_first_pass_pda($text, $uid, '/\[quote=(\\\".*?\\\")\]/is', '[/quote]', '', false, '', "[quote:$uid=\\1]");
+	$text = bbencode_first_pass_pda($text, $uid, '/\[quote=\\\\"(.*?)\\\\"\]/is', '[/quote]', '', false, '', "[quote:$uid=\\\"\\1\\\"]");
 
 	// [list] and [list=x] for (un)ordered lists.
 	$open_tag = array();