diff --git a/code/modules/mining/mine_turfs.dm b/code/modules/mining/mine_turfs.dm
index 6e4defb9477..be291902af4 100644
--- a/code/modules/mining/mine_turfs.dm
+++ b/code/modules/mining/mine_turfs.dm
@@ -530,6 +530,9 @@ var/global/list/rockTurfEdgeCache
 /turf/simulated/mineral/updateMineralOverlays()
 	return
 
+/turf/simulated/wall/updateMineralOverlays()
+	return
+
 /turf/proc/fullUpdateMineralOverlays()
 	for (var/turf/t in range(1,src))
 		t.updateMineralOverlays()