diff --git a/code/game/objects/structures/plasticflaps.dm b/code/game/objects/structures/plasticflaps.dm
index 125666ae25c..12fba0267cf 100644
--- a/code/game/objects/structures/plasticflaps.dm
+++ b/code/game/objects/structures/plasticflaps.dm
@@ -65,7 +65,7 @@
 	return FALSE
 
 /obj/structure/plasticflaps/mining/Destroy()
-	var/oldloc = loc
+	var/atom/oldloc = loc
 	. = ..()
 	if (oldloc)
 		oldloc.air_update_turf(1)