diff --git a/docs/rolereference.rst b/docs/rolereference.rst
index f6e10e52db86ed2effb36b2d05b0097edcc7c826..3feb770c857178951e2ecdc5bde4a7b74c301f0e 100644
--- a/docs/rolereference.rst
+++ b/docs/rolereference.rst
@@ -1101,7 +1101,7 @@ Parameters
   Private key used for TLS for IMAP service. The file will be stored in
   directory ``/etc/ssl/private/`` under name ``{{ ansible_fqdn }}_imap.key``.
 
-**local_mail_aliases** (dictionary, optional, ``[]``)
+**local_mail_aliases** (dictionary, optional, ``{}``)
   Dictionary defining the local aliases. Aliases defined this way will either be
   appended to default aliases on the server, or replace the existing entries (if
   the alias/recipient is already present). Keys in the dictionary are the local