diff --git a/opac/opac-renew.pl b/opac/opac-renew.pl
index 7b59f4752b..40a07e5746 100755
--- a/opac/opac-renew.pl
+++ b/opac/opac-renew.pl
@@ -90,7 +90,7 @@ else {
             $errorstring .= $error . "|";
         }
     }
-    $renewed = join( '|', @renewed );
+    $renewed = join( ':', @renewed );
 }
 
 print $query->redirect("/cgi-bin/koha/opac-user.pl?renew_error=$errorstring&renewed=$renewed");
diff --git a/opac/opac-user.pl b/opac/opac-user.pl
index fdf4054b36..61b88aeb49 100755
--- a/opac/opac-user.pl
+++ b/opac/opac-user.pl
@@ -64,7 +64,7 @@ my ( $template, $borrowernumber, $cookie ) = get_template_and_user(
     }
 );
 
-my %renewed = map { $_ => 1 } split( '|', $query->param('renewed') );
+my %renewed = map { $_ => 1 } split( ':', $query->param('renewed') );
 
 my $show_priority;
 for ( C4::Context->preference("OPACShowHoldQueueDetails") ) {