diff --git a/code/game/objects/structures/window.dm b/code/game/objects/structures/window.dm
index 2ec5df54b85..e3d0dda6f83 100644
--- a/code/game/objects/structures/window.dm
+++ b/code/game/objects/structures/window.dm
@@ -780,6 +780,7 @@
 	glass_type = /obj/item/stack/sheet/plastitaniumglass
 	smoothing_groups = list(SMOOTH_GROUP_SHUTTLE_PARTS, SMOOTH_GROUP_WINDOW_FULLTILE_PLASTITANIUM, SMOOTH_GROUP_PLASTITANIUM_WALLS)
 	canSmoothWith = list(SMOOTH_GROUP_WINDOW_FULLTILE_PLASTITANIUM, SMOOTH_GROUP_SYNDICATE_WALLS, SMOOTH_GROUP_PLASTITANIUM_WALLS)
+	env_smash_level = ENVIRONMENT_SMASH_RWALLS //used in shuttles, same reason as above
 	superconductivity = ZERO_HEAT_TRANSFER_COEFFICIENT
 
 /obj/structure/window/reinforced/clockwork