diff --git a/boot/sounding.ks b/boot/sounding.ks
index b05b27c..4f7fa75 100644
--- a/boot/sounding.ks
+++ b/boot/sounding.ks
@@ -1,8 +1,9 @@
+@lazyglobal off.
 wait until ship:unpacked.
 lock throttle to 1.0.
 
-set booster to ship:partstagged("booster")[0].
-set sustainer to ship:partstagged("sustainer")[0].
+local booster is ship:partstagged("booster")[0].
+local sustainer is ship:partstagged("sustainer")[0].
 
 from {local countdown is 3.} until countdown = 0 step {set countdown to countdown - 1.} do {
     hudtext( "..." + countdown, 1, 2, 15, yellow, false).