--- loncom/interface/lonnavmaps.pm	2017/09/10 00:11:27	1.535
+++ loncom/interface/lonnavmaps.pm	2017/09/13 23:35:07	1.536
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Navigate Maps Handler
 #
-# $Id: lonnavmaps.pm,v 1.535 2017/09/10 00:11:27 raeburn Exp $
+# $Id: lonnavmaps.pm,v 1.536 2017/09/13 23:35:07 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -2290,7 +2290,7 @@ sub generate_email_discuss_status {
     foreach my $msgid (@keys) {
 	if ((!$emailstatus{$msgid}) || ($emailstatus{$msgid} eq 'new')) {
             my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid,
-                $symb,$error) = &Apache::lonmsg::unpackmsgid($msgid);
+                $symb,$error) = &Apache::lonmsg::unpackmsgid(&LONCAPA::escape($msgid));
             &Apache::lonenc::check_decrypt(\$symb); 
             if (($fromcid ne '') && ($fromcid ne $cid)) {
                 next;