diff --git a/sendmail/manifests/init.pp b/sendmail/manifests/init.pp
index 96bb876..59b6d7b 100644
--- a/sendmail/manifests/init.pp
+++ b/sendmail/manifests/init.pp
@@ -54,7 +54,7 @@ class sendmail::common {
     }
     exec { "populate-etc-mail-certs":
         path    => "/bin:/usr/bin:/sbin:/usr/sbin",
-        command => "csplit -k ${cabundle} '/BEGIN/' '{1000}' ; sh -c 'for i in x* ; do name=`openssl x509 -hash -noout -in \$i`.0 ; openssl x509 -hash -in \$i -out \$name ; done' && rm -f x* .0",
+        command => "rm -f /etc/mail/certs/*.0 ; csplit -k ${cabundle} '/BEGIN/' '{1000}' ; sh -c 'for i in x* ; do name=`openssl x509 -hash -noout -in \$i`.0 ; openssl x509 -hash -in \$i -out \$name ; done' && rm -f x* .0",
         cwd     => "/etc/mail/certs",
         onlyif  => "find /etc/mail/certs ! -newer ${cabundle} | egrep '.*' || [ -z \"`ls /etc/mail/certs`\" ]",
         require => File["/etc/mail/certs"],