diff --git a/phpBB/memberlist.php b/phpBB/memberlist.php
index 09b9dab5c1..f8ee82084c 100644
--- a/phpBB/memberlist.php
+++ b/phpBB/memberlist.php
@@ -561,7 +561,7 @@ switch ($mode)
 
 		if ($member['user_sig'])
 		{
-			$member['user_sig'] = generate_text_for_display($member['user_sig'], $member['user_sig_bbcode_uid'], $member['user_sig_bbcode_bitfield'], OPTION_FLAG_BBCODE || OPTION_FLAG_SMILIES, true);
+			$member['user_sig'] = generate_text_for_display($member['user_sig'], $member['user_sig_bbcode_uid'], $member['user_sig_bbcode_bitfield'], OPTION_FLAG_BBCODE | OPTION_FLAG_SMILIES, true);
 		}
 
 		$poster_avatar = phpbb_get_user_avatar($member);