diff --git a/types/zone.go b/types/zone.go
index 0eec776..376c3f7 100644
--- a/types/zone.go
+++ b/types/zone.go
@@ -19,3 +19,7 @@ func (z *ZoneName) UnmarshalJSON(in []byte) error {
 	*z = ZoneName(in)
 	return nil
 }
+
+func (z ZoneName) String() string {
+	return string(z)
+}