diff --git a/copyparty/authsrv.py b/copyparty/authsrv.py
index 96613d21..362d1837 100644
--- a/copyparty/authsrv.py
+++ b/copyparty/authsrv.py
@@ -1817,8 +1817,7 @@ class AuthSrv(object):
                     self.log("\n{0}\n{1}{0}".format(t, "\n".join(slns)))
                     raise
 
-        self.args.have_idp_hdrs = bool(self.args.idp_h_usr or self.args.idp_hm_usr)
-        self.args.have_ipu_or_ipr = bool(self.args.ipu or self.args.ipr)
+        derive_args(self.args)
         self.setup_auth_ord()
 
         self.setup_pwhash(acct)
@@ -3635,6 +3634,11 @@ class AuthSrv(object):
         self.log("generated config:\n\n" + "\n".join(ret))
 
 
+def derive_args(args: argparse.Namespace) -> None:
+    args.have_idp_hdrs = bool(args.idp_h_usr or args.idp_hm_usr)
+    args.have_ipu_or_ipr = bool(args.ipu or args.ipr)
+
+
 def n_du_who(s: str) -> int:
     if s == "all":
         return 9
diff --git a/copyparty/svchub.py b/copyparty/svchub.py
index 635eb776..7e8d147d 100644
--- a/copyparty/svchub.py
+++ b/copyparty/svchub.py
@@ -27,7 +27,7 @@ if True:  # pylint: disable=using-constant-test
     from typing import Any, Optional, Union
 
 from .__init__ import ANYWIN, EXE, MACOS, PY2, TYPE_CHECKING, E, EnvParams, unicode
-from .authsrv import BAD_CFG, AuthSrv, n_du_who, n_ver_who
+from .authsrv import BAD_CFG, AuthSrv, derive_args, n_du_who, n_ver_who
 from .bos import bos
 from .cert import ensure_cert
 from .fsutil import ramdisk_chk
@@ -1186,6 +1186,7 @@ class SvcHub(object):
             zi2 = zi
         al.u2sz = ",".join(zsl)
 
+        derive_args(al)
         return True
 
     def _ipa2re(self, txt) -> Optional[re.Pattern]: