diff --git a/roles/dovecot/tasks/main.yml b/roles/dovecot/tasks/main.yml
index 53b67f6..884639b 100644
--- a/roles/dovecot/tasks/main.yml
+++ b/roles/dovecot/tasks/main.yml
@@ -12,6 +12,7 @@
     keytab: /etc/dovecot/dovecot.keytab
     principals:
       - "imap/{{ mail_server }}@{{ kerberos_realm }}"
+    group: dovecot
 
 - name: install privatekey
   copy: