diff --git a/init.lua b/init.lua
index f640ab7..c76f3b5 100644
--- a/init.lua
+++ b/init.lua
@@ -316,17 +316,17 @@ function pedology.register_sucky_group(basename, basedescription, lumpbasedescri
 		if( maxlump == -1) then
 			drop = nil
 		elseif( w > maxlump) then
-			itemname = "pedology:"..basename.."_lump_"..tostring(maxlump)
+			itemname = "pedology:lump_"..basename.."_"..tostring(maxlump)
 			drop = itemname .. " " .. tostring(dropcount)
 		else
-			itemname = "pedology:"..basename.."_lump_"..tostring(w)
+			itemname = "pedology:lump_"..basename.."_"..tostring(w)
 			drop = itemname .. " " .. tostring(dropcount)
 			itemdef = {
 				description = lumpdescription,
 				inventory_image = "pedology_lump_inv_"..basename.."_"..tostring(w)..".png",
 				wield_image = "pedology_lump_"..basename.."_"..tostring(w)..".png"
 			}
-			minetest.register_craftitem("pedology:"..basename.."_lump_"..tostring(w), itemdef)
+			minetest.register_craftitem("pedology:lump_"..basename.."_"..tostring(w), itemdef)
 		end
 		if(nestedgroups) then
 			groups = additional_groups[w]