diff --git a/core/commands/root.go b/core/commands/root.go
index 245a955b0..e957e7a90 100644
--- a/core/commands/root.go
+++ b/core/commands/root.go
@@ -45,15 +45,16 @@ Use "ipfs help <command>" for more information about a command.
 	Subcommands: map[string]*cmds.Command{
 		"beep": &cmds.Command{
 			Run: func(req cmds.Request, res cmds.Response) {
-				v := TestOutput{"hello, world", 1337}
+				v := &TestOutput{"hello, world", 1337}
 				res.SetValue(v)
 			},
 			Format: func(res cmds.Response) (string, error) {
-				v := res.Value().(TestOutput)
+				v := res.Value().(*TestOutput)
 				s := fmt.Sprintf("Foo: %s\n", v.Foo)
 				s += fmt.Sprintf("Bar: %v\n", v.Bar)
 				return s, nil
 			},
+			Type: &TestOutput{},
 		},
 		"boop": &cmds.Command{
 			Run: func(req cmds.Request, res cmds.Response) {