diff --git a/code/game/machinery/doors/turnstile.dm b/code/game/machinery/doors/turnstile.dm
index 813d76ceea53..44f639c9f826 100644
--- a/code/game/machinery/doors/turnstile.dm
+++ b/code/game/machinery/doors/turnstile.dm
@@ -15,6 +15,8 @@
 	resistance_flags = LAVA_PROOF | FIRE_PROOF | UNACIDABLE | ACID_PROOF
 	layer = OPEN_DOOR_LAYER
 	climbable = FALSE
+	CanAtmosPass = ATMOS_PASS_NO
+
 /obj/machinery/turnstile/brig
 	name = "Brig turnstile"
 	//Seccies and brig phys may always pass, either way.