1 files changed, 4 insertions, 0 deletions
diff --git a/ipmask.go b/ipmask.go
index b8a164a..6f85be9 100644
--- a/ipmask.go
+++ b/ipmask.go
@@ -26,6 +26,10 @@ func (i *ipMaskValue) Get() interface{} {
 	return net.IPMask(*i)
 }
 
+func (i *ipMaskValue) Type() string {
+	return "ipMask"
+}
+
 // Parse IPv4 netmask written in IP form (e.g. 255.255.255.0).
 // This function should really belong to the net package.
 func ParseIPv4Mask(s string) net.IPMask {