diff --git a/mods/default/crafting.lua b/mods/default/crafting.lua
index 99218ad..0e1b2bd 100644
--- a/mods/default/crafting.lua
+++ b/mods/default/crafting.lua
@@ -587,6 +587,22 @@ minetest.register_craft(
       cooktime = 4,
    })
 
+minetest.register_craft(
+   {
+      type = "cooking",
+      output = "default:lump_coal",
+      recipe = "default:tree_oak",
+      cooktime = 5,
+   })
+
+minetest.register_craft(
+   {
+      type = "cooking",
+      output = "default:lump_coal",
+      recipe = "default:tree_birch",
+      cooktime = 5,
+   })
+
 minetest.register_craft(
    {
       type = "cooking",