diff --git a/sogo-mail/sogo-config-secret.yaml b/sogo-mail/sogo-config-secret.yaml
index aac063f..ccd3e0b 100644
--- a/sogo-mail/sogo-config-secret.yaml
+++ b/sogo-mail/sogo-config-secret.yaml
@@ -32,8 +32,10 @@ spec:
             canAuthenticate: YES
             isAddressBook: YES
             bindAsCurrentUser: YES
-            LoginFieldNames: ("mail")
-            MailFieldNames: ("mail")
+            LoginFieldNames:
+              - mail
+            MailFieldNames:
+              - mail
             displayName: "Shared Addresses"
             filter: "(objectClass=user)"
         SOGoIMAPServer: "imaps://stalwart.rubenhensen.nl:993"