diff --git a/config/optional/ldap_user.settings.yml b/config/optional/ldap_user.settings.yml
index 381bc82..38d86ea 100644
--- a/config/optional/ldap_user.settings.yml
+++ b/config/optional/ldap_user.settings.yml
@@ -47,6 +47,15 @@ ldapUserSyncMappings:
       prov_events:
         - create_drupal_user
         - sync_to_drupal_user
+    field-field_user_name:
+      ldap_attr: '[displayName]'
+      user_attr: '[field.field_user_name]'
+      convert: false
+      user_tokens: ''
+      config_module: ldap_user
+      prov_module: ldap_user
+      prov_events:
+        - create_drupal_user
     field-field_user_phone_number:
       ldap_attr: '[telephoneNumber]'
       user_attr: '[field.field_user_phone_number]'