diff --git a/roles/dovecot/defaults/main/userdb.yml b/roles/dovecot/defaults/main/userdb.yml
index e249f62..8dd4403 100644
--- a/roles/dovecot/defaults/main/userdb.yml
+++ b/roles/dovecot/defaults/main/userdb.yml
@@ -8,4 +8,4 @@ dovecot_passdb_user_format: "%u"
 
 dovecot_master_passdb_enable: no
 dovecot_master_passdb: {}
-master_user_separator: ";"
+dovecot_master_user_separator: ";"