diff --git a/code/controllers/subsystem/air.dm b/code/controllers/subsystem/air.dm
index 52d2fe45cd..13facc7666 100644
--- a/code/controllers/subsystem/air.dm
+++ b/code/controllers/subsystem/air.dm
@@ -257,8 +257,7 @@ SUBSYSTEM_DEF(air)
 		T.add_atom_colour("#00ff00", TEMPORARY_COLOUR_PRIORITY)
 		#endif
 		T.excited = TRUE
-		active_turfs |= T
-		SSair_turfs.currentrun |= T
+		active_turfs[T] = SSair_turfs.currentrun[T] = TRUE
 		if(blockchanges && T.excited_group)
 			T.excited_group.garbage_collect()
 		add_to_react_queue(T)
@@ -274,10 +273,9 @@ SUBSYSTEM_DEF(air)
 
 /datum/controller/subsystem/air/proc/add_to_react_queue(turf/open/T)
 	if(istype(T) && T.air)
-		turf_react_queue |= T
+		turf_react_queue[T] = TRUE
 		if(currentpart == SSAIR_REACTQUEUE)
-			currentrun |= T
-	return
+			currentrun[T] = TRUE
 
 /datum/controller/subsystem/air/proc/remove_from_react_queue(turf/open/T)
 	turf_react_queue -= T