diff --git a/grub-core/commands/minicmd.c b/grub-core/commands/minicmd.c
index 286290866..8c5ee3e60 100644
--- a/grub-core/commands/minicmd.c
+++ b/grub-core/commands/minicmd.c
@@ -203,8 +203,8 @@ GRUB_MOD_INIT(minicmd)
     grub_register_command ("help", grub_mini_cmd_help,
 			   0, N_("Show this message."));
   cmd_dump =
-    grub_register_command ("dump", grub_mini_cmd_dump,
-			   N_("ADDR [SIZE]"), N_("Show memory contents."));
+    grub_register_command_lockdown ("dump", grub_mini_cmd_dump,
+				    N_("ADDR [SIZE]"), N_("Show memory contents."));
   cmd_rmmod =
     grub_register_command ("rmmod", grub_mini_cmd_rmmod,
 			   N_("MODULE"), N_("Remove a module."));