--- loncom/homework/grades.pm	2021/01/23 20:24:53	1.782
+++ loncom/homework/grades.pm	2021/01/23 20:32:17	1.783
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Grading handler
 #
-# $Id: grades.pm,v 1.782 2021/01/23 20:24:53 raeburn Exp $
+# $Id: grades.pm,v 1.783 2021/01/23 20:32:17 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1173,6 +1173,8 @@ LISTJAVASCRIPT
         my @sections;
         if ($env{'request.course.sec'} ne '') {
             @sections = ($env{'request.course.sec'});
+        } elsif ($env{'form.section'} eq '') {
+            @sections = ('all');
         } else {
             @sections = &Apache::loncommon::get_env_multiple('form.section');
         }