diff --git a/code/game/objects/items/robot/robot_upgrades.dm b/code/game/objects/items/robot/robot_upgrades.dm
index 1c1c72d30cf..7ac90a7966e 100644
--- a/code/game/objects/items/robot/robot_upgrades.dm
+++ b/code/game/objects/items/robot/robot_upgrades.dm
@@ -49,7 +49,6 @@
 	R.speed = 0 // Remove upgrades.
 	R.ionpulse = FALSE
 	R.magpulse = FALSE
-	R.weather_immunities = initial(R.weather_immunities)
 
 	R.status_flags |= CANPUSH