diff --git a/grub-core/commands/parttool.c b/grub-core/commands/parttool.c
index 42c590e1a..693e2cb42 100644
--- a/grub-core/commands/parttool.c
+++ b/grub-core/commands/parttool.c
@@ -283,6 +283,7 @@ grub_cmd_parttool (grub_command_t cmd __attribute__ ((unused)),
 	    }
 	if (! cur)
 	  {
+	    grub_free (parsed);
 	    grub_device_close (dev);
 	    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("unknown argument `%s'"),
 			     args[i]);