--- loncom/interface/lonexttool.pm	2018/08/14 18:20:17	1.20
+++ loncom/interface/lonexttool.pm	2021/05/04 18:47:36	1.21
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Launch External Tool Provider (LTI)
 #
-# $Id: lonexttool.pm,v 1.20 2018/08/14 18:20:17 raeburn Exp $
+# $Id: lonexttool.pm,v 1.21 2021/05/04 18:47:36 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -312,7 +312,7 @@ sub lti_params {
     my $domdesc = &Apache::lonnet::domain($cdom);
     my $primary_id = &Apache::lonnet::domain($cdom,'primary');
     my $int_dom = &Apache::lonnet::internet_dom($primary_id);
-    my $portal_url = &Apache::lonnet::course_portal_url($cnum,$cdom);
+    my $portal_url = &Apache::lonnet::course_portal_url($cnum,$cdom,$r);
 
     my %ltiparams = (
         lti_version                            => $version,