diff --git a/mkosi.images/system/mkosi.extra/usr/share/dbus-1/system.d/systemd.test.ExecStopPost.conf b/mkosi.images/system/mkosi.extra/usr/share/dbus-1/system.d/systemd.test.ExecStopPost.conf
new file mode 100644
index 0000000000..ddd36ed5dc
--- /dev/null
+++ b/mkosi.images/system/mkosi.extra/usr/share/dbus-1/system.d/systemd.test.ExecStopPost.conf
@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
+        "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
+
+<!--
+  SPDX-License-Identifier: LGPL-2.1-or-later
+-->
+
+<busconfig>
+    <policy user="root">
+        <allow own="systemd.test.ExecStopPost"/>
+    </policy>
+</busconfig>