diff --git a/applications/gitlab.nix b/applications/gitlab.nix
index b7e6960..106bfc0 100644
--- a/applications/gitlab.nix
+++ b/applications/gitlab.nix
@@ -156,6 +156,7 @@
               active_directory = false;
               #base = "ou=users,${cfg.ldap.base}?sub?(|(skMemberOf=cn=skynet-users,ou=groups,${cfg.ldap.base}))";
               base = "ou=users,${cfg.ldap.base}";
+              user_filter = "(skMemberOf=cn=skynet-users,ou=groups,${cfg.ldap.base})";
 
               attributes = {
                 username = "uid";