menu: Fix stack alignment issue
diff --git a/stage23/menu.c b/stage23/menu.c
index bcb7a3b2..5786efa5 100644
--- a/stage23/menu.c
+++ b/stage23/menu.c
@@ -570,6 +570,7 @@ void menu(__attribute__((unused)) bool timeout_enabled) {
"mov stack_at_first_entry(%rip), %rsp\n\t"
"2:\n\t"
"push $0\n\t"
+ "push $0\n\t"
"jmp _menu"
);
#endif
