diff --git a/test/integration/mesh.test.ts b/test/integration/mesh.test.ts
index fc63b71..fd3bb39 100644
--- a/test/integration/mesh.test.ts
+++ b/test/integration/mesh.test.ts
@@ -1403,7 +1403,9 @@ test("a service is reached by a name under the machine it runs on", {
       `journal:\n${(await on(machine, `journalctl -u dnsmasq -n 25 --no-pager`)).out}\n` +
       `its config:\n${(await on(machine, `cat /etc/dnsmasq.conf`)).out}\n` +
       `what the mesh wrote:\n${(await on(machine, `cat /etc/mesh-resolver/nodes.conf`)).out}\n` +
-      `resolv.conf:\n${(await on(machine, `cat /etc/resolv.conf`)).out}`);
+      `resolv.conf:\n${(await on(machine, `cat /etc/resolv.conf`)).out}\n` +
+      `what holds a loopback address:\n` +
+      `${(await on(machine, `ss -lntup | grep 127.0.0 || echo none`)).out}`);
   }
 
   // Through the machine's own resolver, by the path an application actually takes: nsswitch, then