diff --git a/minetest_game/walls b/minetest_game/walls
index 19000b0c..a15c70e6 160000
--- a/minetest_game/walls
+++ b/minetest_game/walls
@@ -1 +1 @@
-Subproject commit 19000b0c4f31800d1c2dc432f5efc68ada75351d
+Subproject commit a15c70e61b18d10fa7ed97c9d8162113a9250ed6