diff --git a/externalmodify.lua b/externalmodify.lua
index 1bac0be..edb9139 100644
--- a/externalmodify.lua
+++ b/externalmodify.lua
@@ -142,7 +142,10 @@ for name, def in pairs(minetest.registered_tools) do
 			if(specialties.skills[skill].tool ~= "") then
 				if(name:find(specialties.skills[skill].tool) ~= nil and special ~= {}) then
 					local toolname = "specialties"..name:sub(colonpos).."_"..special.name
-					local newdef = def
+					local newdef = {}
+					for k,v in pairs(def) do
+						newdef[k] = v
+					end
 					newdef.description = def.description.." "..special.description
 					newdef.inventory_image = def.inventory_image.."^specialties_"..special.name..".png"
 					newdef.wield_image = def.inventory_image.."^specialties_"..special.name..".png"
diff --git a/textures/specialties_greenthumb.png b/textures/specialties_greenthumb.png
index 1917ae7..898a6c7 100644
Binary files a/textures/specialties_greenthumb.png and b/textures/specialties_greenthumb.png differ
diff --git a/textures/specialties_superheat.png b/textures/specialties_superheat.png
index 934cf1e..af98a24 100644
Binary files a/textures/specialties_superheat.png and b/textures/specialties_superheat.png differ