diff --git a/code/game/objects/structures/window.dm b/code/game/objects/structures/window.dm
index 6450894f4c..49f3bb8437 100644
--- a/code/game/objects/structures/window.dm
+++ b/code/game/objects/structures/window.dm
@@ -428,7 +428,7 @@
 	var/list/dirs = list()
 	if(anchored)
 		for(var/obj/structure/window/W in orange(src,1))
-			if(W.anchored && W.density && W.type == src.type && W.is_fulltile()) //Only counts anchored, not-destroyed fill-tile windows.
+			if(W.anchored && W.density && W.glasstype == src.glasstype && W.is_fulltile()) //Only counts anchored, not-destroyed fill-tile windows.
 				dirs += get_dir(src, W)
 
 	var/list/connections = dirs_to_corner_states(dirs)