diff --git a/internal/proxy/label_surface_test.go b/internal/proxy/label_surface_test.go
index 01f06a36..747d1a20 100644
--- a/internal/proxy/label_surface_test.go
+++ b/internal/proxy/label_surface_test.go
@@ -546,6 +546,7 @@ func TestLabelSurface_LabelValuesIndexStartupWarmsFromPeersWhenDiskStale(t *test
 		DiscoveryType: "static",
 		StaticPeers:   peerAddr,
 		Timeout:       800 * time.Millisecond,
+		AuthToken:     "shared-secret",
 	})
 
 	localCache := cache.New(5*time.Minute, 1000)