diff --git a/arkdep-build.d/test-arkanelinux-pantheon/extensions/post-install.sh b/arkdep-build.d/test-arkanelinux-pantheon/extensions/post-install.sh
new file mode 100644
index 0000000..4f80de4
--- /dev/null
+++ b/arkdep-build.d/test-arkanelinux-pantheon/extensions/post-install.sh
@@ -0,0 +1,5 @@
+# Add plank to system-wide autostart, it is done system-wide to ensure Plank starts
+# in case the user switches between variants
+cp -v $workdir/usr/share/applications/plank.desktop \
+	$workdir/etc/xdg/autostart \
+	|| cleanup_and_quit 'Failed to copy plank.desktop to xdg autostart'