diff --git a/cmd/mirror.go b/cmd/mirror.go
index 411336156d..61ff7344a2 100644
--- a/cmd/mirror.go
+++ b/cmd/mirror.go
@@ -626,7 +626,7 @@ current working directory (".") will be used.`,
 		},
 	}
 
-	cmd.Flags().StringVarP(&keyDir, "", "i", "", "Path to write the private key file")
+	cmd.Flags().StringVarP(&keyDir, "key-dir", "k", "", "Path to write the private key file")
 
 	return cmd
 }