diff --git a/cmd/lotus-shed/cid.go b/cmd/lotus-shed/cid.go
index 4b526ea2f..e7205e28e 100644
--- a/cmd/lotus-shed/cid.go
+++ b/cmd/lotus-shed/cid.go
@@ -46,6 +46,7 @@ var cborCid = &cli.Command{
 		buf := bytes.NewBuffer(make([]byte, 0))
 		cbgc.MarshalCBOR(buf)
 		fmt.Printf("%x\n", buf.Bytes())
+		return nil
 	},
 }