diff --git a/dom0/aux-tools/qubes-receive-updates b/dom0/aux-tools/qubes-receive-updates
index cea29247..f306cb11 100755
--- a/dom0/aux-tools/qubes-receive-updates
+++ b/dom0/aux-tools/qubes-receive-updates
@@ -47,7 +47,7 @@ def handle_dom0updates(updatevm):
         shutil.rmtree(updates_rpm_dir)
     os.mkdir(updates_rpm_dir)
     os.chmod(updates_rpm_dir, 0775)
-    subprocess.check_call(["/usr/lib/qubes/qfile-dom0-unpacker", os.getlogin(), updates_rpm_dir])
+    subprocess.check_call(["/usr/lib/qubes/qfile-dom0-unpacker", str(os.getuid()), updates_rpm_dir])
     # Verify received files
     for f in os.listdir(updates_rpm_dir):
         if package_regex.match(f):