diff --git a/code/controllers/subsystem/air.dm b/code/controllers/subsystem/air.dm
index 32aa9afcbb1..dd0ad3267fe 100644
--- a/code/controllers/subsystem/air.dm
+++ b/code/controllers/subsystem/air.dm
@@ -94,10 +94,8 @@ SUBSYSTEM_DEF(air)
 		var/list/pipenet_rebuilds = pipenets_needing_rebuilt
 		for(var/thing in pipenet_rebuilds)
 			var/obj/machinery/atmospherics/AT = thing
-			//SKYRAT EDIT CHANGE BEGIN - MISC
-			if(!istype(AT))
+			if(!thing) //If a null somehow shows up here, this next line runtimes and the subsystem dies
 				continue
-			//SKYRAT EDIT CHANGE BEGIN - MISC
 			AT.build_network()
 		cached_cost += TICK_USAGE_REAL - timer
 		pipenets_needing_rebuilt.Cut()