diff --git a/dovecot/dovecot.service.in b/dovecot/dovecot.service.in
index 3455cceaae..dc256a3b7a 100644
--- a/dovecot/dovecot.service.in
+++ b/dovecot/dovecot.service.in
@@ -18,6 +18,7 @@ Type=@systemdservicetype@
 ExecStart=@sbindir@/dovecot -F
 ExecReload=@bindir@/doveadm reload
 ExecStop=@bindir@/doveadm stop
+ExecStartPre=/etc/init.d/dovecot generate
 PrivateTmp=true
 NonBlocking=yes
 ProtectSystem=full