--- loncom/lti/ltiauth.pm	2021/08/04 19:59:11	1.20
+++ loncom/lti/ltiauth.pm	2021/08/07 01:34:20	1.21
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Basic LTI Authentication Module
 #
-# $Id: ltiauth.pm,v 1.20 2021/08/04 19:59:11 raeburn Exp $
+# $Id: ltiauth.pm,v 1.21 2021/08/07 01:34:20 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1036,7 +1036,7 @@ sub course_from_tinyurl {
     my ($tail) = @_;
     my ($urlcdom,$urlcnum);
     if ($tail =~ m{^/tiny/($match_domain)/(\w+)$}) {
-        my ($urlcdom,$key) = ($1,$2);
+        ($urlcdom,my $key) = ($1,$2);
         my $tinyurl;
         my ($result,$cached)=&Apache::lonnet::is_cached_new('tiny',$urlcdom."\0".$key);
         if (defined($cached)) {