diff --git a/modular_skyrat/modules/stone/code/stone.dm b/modular_skyrat/modules/stone/code/stone.dm
index 10dc0ddd708..380579bcbf9 100644
--- a/modular_skyrat/modules/stone/code/stone.dm
+++ b/modular_skyrat/modules/stone/code/stone.dm
@@ -17,6 +17,7 @@
 	matter_amount = 0
 //	cost = 500
 	source = null
+	walltype = /turf/closed/wall/mineral/stone
 
 /datum/material/stone
 	name = "stone"