diff --git a/ipn/prefs.go b/ipn/prefs.go
index f487df034..114bc424f 100644
--- a/ipn/prefs.go
+++ b/ipn/prefs.go
@@ -376,9 +376,9 @@ type MaskedPrefs struct {
 	AutoUpdateSet             AutoUpdatePrefsMask `json:",omitempty"`
 	AppConnectorSet           bool                `json:",omitempty"`
 	PostureCheckingSet        bool                `json:",omitempty"`
-	NetfilterKindSet          bool                `json:",omitzero"`
-	DriveSharesSet            bool                `json:",omitzero"`
-	RelayServerPortSet        bool                `json:",omitzero"`
+	NetfilterKindSet          bool                `json:",omitempty"`
+	DriveSharesSet            bool                `json:",omitempty"`
+	RelayServerPortSet        bool                `json:",omitempty"`
 	StaticEndpointsSet        bool                `json:",omitzero"`
 }