diff --git a/helmfile/apps/open-xchange/values-openxchange-enterprise-contact-picker.yaml.gotmpl b/helmfile/apps/open-xchange/values-openxchange-enterprise-contact-picker.yaml.gotmpl
index b2195f9b..502e6742 100644
--- a/helmfile/apps/open-xchange/values-openxchange-enterprise-contact-picker.yaml.gotmpl
+++ b/helmfile/apps/open-xchange/values-openxchange-enterprise-contact-picker.yaml.gotmpl
@@ -379,8 +379,12 @@ appsuite:
           # The values for the for assistant- and manager name mappings are either used as-is, or get resolved
           # dynamically using the DNs found
           # in the mapped LDAP attribute.
-          assistant_name: "secretary"
-          manager_name: "oxManagerName,manager"
+
+          # Due to the Univention bug https://forge.univention.org/bugzilla/show_bug.cgi?id=53741
+          # we disable `assistant_name` contact picker attribute and use `secretary` for manager information.
+          # assistant_name: "secretary"
+          manager_name: "secretary,oxManagerName"
+
           # Contact image, binary format is expected.
           image1: "jpegPhoto"
           # Special mapping where the value is evaluated using a string comparison with, or the existence of