diff --git a/pkarcs.lua b/pkarcs.lua
index 001a655640a663d4748784a9b83998a2fbf4bf4d..79ddcd4eba306b7593cf429c52eede71d759fde9 100644
--- a/pkarcs.lua
+++ b/pkarcs.lua
@@ -1 +1 @@
-register_arc("illuna", "stonebrick", "Stonebrick", "default_stonebrick", default.node_sound_stone_defaults(), {cracky=3, stone=1})
+register_arc("illuna", "stonebrick", "Stonebrick", "default_stone_brick", default.node_sound_stone_defaults(), {cracky=3, stone=1}, 3)