diff --git a/phpBB/includes/usercp_register.php b/phpBB/includes/usercp_register.php
index 3171264405..b7a309ca3c 100644
--- a/phpBB/includes/usercp_register.php
+++ b/phpBB/includes/usercp_register.php
@@ -152,7 +152,7 @@ if (
 	}
 	else
 	{
-		$attachsig = ( isset($HTTP_POST_VARS['attachsig']) ) ? ( ($HTTP_POST_VARS['attachsig']) ? TRUE : 0 ) : 0;
+		$attachsig = ( isset($HTTP_POST_VARS['attachsig']) ) ? ( ($HTTP_POST_VARS['attachsig']) ? TRUE : 0 ) : $userdata['user_attachsig'];
 
 		$allowhtml = ( isset($HTTP_POST_VARS['allowhtml']) ) ? ( ($HTTP_POST_VARS['allowhtml']) ? TRUE : 0 ) : $userdata['user_allowhtml'];
 		$allowbbcode = ( isset($HTTP_POST_VARS['allowbbcode']) ) ? ( ($HTTP_POST_VARS['allowbbcode']) ? TRUE : 0 ) : $userdata['user_allowbbcode'];