diff --git a/ipn/ipnlocal/local.go b/ipn/ipnlocal/local.go
index 8cc74c41e..36e4ad8a5 100644
--- a/ipn/ipnlocal/local.go
+++ b/ipn/ipnlocal/local.go
@@ -1216,6 +1216,7 @@ func stripKeysFromPrefs(p ipn.PrefsView) ipn.PrefsView {
 	p2.Persist.PrivateNodeKey = key.NodePrivate{}
 	p2.Persist.OldPrivateNodeKey = key.NodePrivate{}
 	p2.Persist.NetworkLockKey = key.NLPrivate{}
+	p2.Persist.AttestationKey = nil
 	return p2.View()
 }