--- loncom/loncron	2021/02/01 01:24:09	1.126
+++ loncom/loncron	2021/02/02 20:53:05	1.127
@@ -2,7 +2,7 @@
 
 # Housekeeping program, started by cron, loncontrol and loncron.pl
 #
-# $Id: loncron,v 1.126 2021/02/01 01:24:09 raeburn Exp $
+# $Id: loncron,v 1.127 2021/02/02 20:53:05 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -46,6 +46,8 @@ use GDBM_File;
 use Storable qw(thaw);
 use File::ReadBackwards;
 use File::Copy;
+use GDBM_File qw(GDBM_READER);
+use Storable qw(thaw nfreeze);
 use Sys::Hostname::FQDN();
 
 #globals