diff --git a/support/testing/tests/init/systemd-overlay-fstab/etc/fstab b/support/testing/tests/init/systemd-overlay-fstab/etc/fstab
new file mode 100644
index 0000000000..d5c84406db
--- /dev/null
+++ b/support/testing/tests/init/systemd-overlay-fstab/etc/fstab
@@ -0,0 +1,2 @@
+/dev/root / auto ro 0 1
+other-var-backing-store /run/buildroot/mounts/var tmpfs defaults