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-rw-r--r--pipeworks/wielder.lua6
1 files changed, 5 insertions, 1 deletions
diff --git a/pipeworks/wielder.lua b/pipeworks/wielder.lua
index 51ee278..b92176f 100644
--- a/pipeworks/wielder.lua
+++ b/pipeworks/wielder.lua
@@ -28,7 +28,11 @@ local can_tool_dig_node = function(nodename, toolcaps, toolname)
-- diggable: boolean, can this tool dig this node at all
-- time: float, time needed to dig with this tool
-- wear: int, number of wear points to inflict on the item
- local nodegroups = minetest.registered_nodes[nodename].groups
+ local nodedef = minetest.registered_nodes[nodename]
+ -- don't explode due to nil def in event of unknown node!
+ if (nodedef == nil) then return false end
+
+ local nodegroups = nodedef.groups
local diggable = minetest.get_dig_params(nodegroups, toolcaps).diggable
if not diggable then
-- a pickaxe can't actually dig leaves based on it's groups alone,