diff --git a/stand/liblua/lutils.c b/stand/liblua/lutils.c
--- a/stand/liblua/lutils.c
+++ b/stand/liblua/lutils.c
@@ -109,6 +109,13 @@
 	return 1;
 }
 
+static int
+lua_exit(lua_State *L)
+{
+	exit(luaL_checkinteger(L, 1));
+	return 0;
+}
+
 static int
 lua_command_error(lua_State *L)
 {
@@ -380,14 +387,15 @@
 
 #define REG_SIMPLE(n)	{ #n, lua_ ## n }
 static const struct luaL_Reg loaderlib[] = {
-	REG_SIMPLE(delay),
-	REG_SIMPLE(command_error),
 	REG_SIMPLE(command),
-	REG_SIMPLE(interpret),
-	REG_SIMPLE(parse),
+	REG_SIMPLE(command_error),
+	REG_SIMPLE(delay),
+	REG_SIMPLE(exit),
 	REG_SIMPLE(getenv),
 	REG_SIMPLE(has_command),
 	REG_SIMPLE(has_feature),
+	REG_SIMPLE(interpret),
+	REG_SIMPLE(parse),
 	REG_SIMPLE(perform),
 	REG_SIMPLE(printc),	/* Also registered as the global 'printc' */
 	REG_SIMPLE(setenv),
diff --git a/stand/lua/loader.lua.8 b/stand/lua/loader.lua.8
--- a/stand/lua/loader.lua.8
+++ b/stand/lua/loader.lua.8
@@ -61,6 +61,10 @@
 Like
 .Fn perform
 but the arguments are already parsed onto the stack.
+.It Fn exit status
+Exit the boot loader back to the firmware with a status of
+.Va status .
+The interpretation of this value is firmware specific.
 .It Fn interpret str
 Execute the loader builtin command
 .Va str