diff --git a/cyrus-imapd.cron-daily b/cyrus-imapd.cron-daily
index 1f55aa8..e973692 100644
--- a/cyrus-imapd.cron-daily
+++ b/cyrus-imapd.cron-daily
@@ -30,7 +30,7 @@ done
 [ -f ${MBOXLIST}.gz ] && mv -f ${MBOXLIST}.gz ${MBOXLIST}.1.gz
 
 # export mailboxes.db
-$RUNUSER - cyrus -c "umask 077 < /dev/null ; /usr/lib/cyrus-imapd/ctl_mboxlist -d | gzip > ${MBOXLIST}.gz"
+$RUNUSER - cyrus -s /bin/sh -c "umask 077 < /dev/null ; /usr/lib/cyrus-imapd/ctl_mboxlist -d | gzip > ${MBOXLIST}.gz"
 
 exit 0
 # EOF
diff --git a/cyrus-imapd.spec b/cyrus-imapd.spec
index 9919cdd..5f0e2dc 100644
--- a/cyrus-imapd.spec
+++ b/cyrus-imapd.spec
@@ -2,7 +2,7 @@
 
 Name: cyrus-imapd
 Version: 2.3.15
-Release: 9%{?dist}
+Release: 10%{?dist}
 
 %define ssl_pem_file %{_sysconfdir}/pki/%{name}/%{name}.pem
 
@@ -520,7 +520,10 @@ fi
 %{_mandir}/man1/*
 
 %changelog
-* Fri Dec  4 2009 Stepan Kasal <skasal@redhat.com> - 2.3.15-9
+* Fri Dec 04 2009 Michal Hlavinka <mhlavink@redhat.com> - 2.3.15-10
+- fix shell for daily cron job (#544182)
+
+* Fri Dec 04 2009 Stepan Kasal <skasal@redhat.com> - 2.3.15-9
 - rebuild against perl 5.10.1
 
 * Thu Nov 26 2009 Michal Hlavinka <mhlavink@redhat.com> - 2.3.15-8