1 files changed, 1 insertions, 0 deletions
diff --git a/flag.go b/flag.go
index dfc03d2..47761a0 100644
--- a/flag.go
+++ b/flag.go
@@ -154,6 +154,7 @@ type Flag struct {
 type Value interface {
 	String() string
 	Set(string) error
+	Type() string
 }
 
 // sortFlags returns the flags as a slice in lexicographical sorted order.