diff --git a/mail-server.nix b/mail-server.nix
index 3da5476..db2f5db 100644
--- a/mail-server.nix
+++ b/mail-server.nix
@@ -245,6 +245,7 @@ in {
             "auth_bind = yes"
             "auth_bind_userdn = cn=%u,${cfg.ldap.member-ou},${cfg.ldap.base}"
             "base = ${cfg.ldap.base}"
+            "user_attrs = =user=%{ldap:cn}"
           ]);
         target-file = "/run/dovecot-secret/ldap.conf";
       };
diff --git a/postfix.nix b/postfix.nix
index fb62478..f4bd48f 100644
--- a/postfix.nix
+++ b/postfix.nix
@@ -200,8 +200,6 @@ in {
 
           auth_mechanisms = login plain
 
-          user_attrs = =user=%{ldap:cn}
-
           passdb {
             driver = ldap
             args = ${cfg.ldap-conf}