--- a/cmd/tar-split/main.go
+++ b/cmd/tar-split/main.go
@@ -33,7 +33,7 @@
 	app.Commands = []cli.Command{
 		{
 			Name:    "disasm",
-			Aliases: []string{"d"},
+			ShortName: "d",
 			Usage:   "disassemble the input tar stream",
 			Action:  CommandDisasm,
 			Flags: []cli.Flag{
@@ -50,7 +50,7 @@
 		},
 		{
 			Name:    "asm",
-			Aliases: []string{"a"},
+			ShortName: "a",
 			Usage:   "assemble tar stream",
 			Action:  CommandAsm,
 			Flags: []cli.Flag{