Index: locker/bin/signup-cron
===================================================================
--- locker/bin/signup-cron	(revision 659)
+++ locker/bin/signup-cron	(revision 660)
@@ -5,5 +5,5 @@
 
 if [ ! -d "/mit/$lname/cron_scripts/" ]; then
-  mkdir /mit/$lname/cron_scripts
+  mkdir -p /mit/$lname/cron_scripts
   fs sa /mit/$lname/cron_scripts system:anyuser l
   fs sa /mit/$lname/cron_scripts system:authuser none