diff --git a/lib/auth/helpers.go b/lib/auth/helpers.go
index 2db970b6fa535..6fa6fb37de4ec 100644
--- a/lib/auth/helpers.go
+++ b/lib/auth/helpers.go
@@ -294,6 +294,7 @@ func NewTestAuthServer(cfg TestAuthServerConfig) (*TestAuthServer, error) {
 			},
 		},
 		EmbeddingRetriever: ai.NewSimpleRetriever(),
+		HostUUID:           uuid.New().String(),
 	},
 		WithClock(cfg.Clock),
 		WithEmbedder(cfg.Embedder),