diff --git a/argset.go b/argset.go
index 9ccb0b5..5a7b2ca 100755
--- a/argset.go
+++ b/argset.go
@@ -26,6 +26,18 @@ func NewArgSet(configFiles ...string) *ArgSet {
 	}
 }
 
+func (as *ArgSet) String() string {
+	s := "{"
+	for _, arg := range as.args {
+		if len(s) > 2 {
+			s += ", "
+		}
+		s += fmt.Sprintf("%s:%v", arg.Flag, arg.Value)
+	}
+	s += "}"
+	return s
+}
+
 func (as *ArgSet) Append(argType Type, key, help string, def interface{}) {
 	as.args = append(as.args, NewArg(argType, key, help, def))
 }