diff --git a/test/integration/mesh.test.ts b/test/integration/mesh.test.ts
index 6854092..13538cb 100644
--- a/test/integration/mesh.test.ts
+++ b/test/integration/mesh.test.ts
@@ -1195,12 +1195,15 @@ test("the hub can be filtered without severing the mesh", {
   // The failure this guards against is not subtle and is very hard to recover from: a rule set
   // that closes the hub's own port takes the private network down, and the mesh's way of fixing
   // anything is to send a declaration over it.
-  const rules = "/etc/mesh/hub-filter.nft";
+  // Its own directory. Another module on this machine already declares /etc/mesh, and the mesh
+  // refuses two modules declaring one path rather than letting the second quietly win — which it
+  // did here, correctly, the first time this ran.
+  const rules = "/etc/mesh-hub/filter.nft";
   await must("anchor", `printf %s '{"module":"hubfilter","version":"1",` +
     `"capabilities":["firewall"],` +
     `"filtering":{"into":"${rules}"},` +
     `"resources":[{"id":"nftables","type":"package","package":"nftables"},` +
-    `{"id":"dir","type":"directory","path":"/etc/mesh","mode":"0755"},` +
+    `{"id":"dir","type":"directory","path":"/etc/mesh-hub","mode":"0755"},` +
     `{"id":"unit","type":"file","path":"/etc/systemd/system/hub-filter.service",` +
     `"mode":"0644","content":"[Unit]\\nDescription=What the mesh computed for the hub\\n` +
     `[Service]\\nType=oneshot\\nRemainAfterExit=yes\\n` +
@@ -1218,7 +1221,9 @@ test("the hub can be filtered without severing the mesh", {
   const written = await must("anchor", `cat ${rules}`);
   assert.match(written, /udp dport 51820 accept/,
     `the hub's rule set closes the private network it is the way onto:\n${written}`);
-  assert.match(written, /# networking/,
+  // The module that provides the private network, not the requirement it answers: `networking`
+  // is the domain a module offers, and what caused a rule is the module itself.
+  assert.match(written, /# mesh-wireguard — the private network/,
     `the rule does not name what caused it:\n${written}`);
 
   // Loaded, and the mesh still works: a declaration reaches the other machine, which it cannot if