diff --git a/ipn/prefs_clone.go b/ipn/prefs_clone.go
index c0e11f8f8..71db273f9 100644
--- a/ipn/prefs_clone.go
+++ b/ipn/prefs_clone.go
@@ -48,4 +48,5 @@ var _PrefsNeedsRegeneration = Prefs(struct {
 	NoSNAT           bool
 	NetfilterMode    router.NetfilterMode
 	Persist          *controlclient.Persist
+	LogServer        string
 }{})