diff --git a/materials.py b/materials.py
index b2b68b6..4c7d770 100644
--- a/materials.py
+++ b/materials.py
@@ -370,9 +370,15 @@ alphaMaterials.BirchWood = alphaMaterials[17, 2]
 alphaMaterials.Leaves = alphaMaterials[18, 0]
 alphaMaterials.PineLeaves = alphaMaterials[18, 1]
 alphaMaterials.BirchLeaves = alphaMaterials[18, 2]
-alphaMaterials.LeavesDecaying = alphaMaterials[18, 4]
-alphaMaterials.PineLeavesDecaying = alphaMaterials[18, 5]
-alphaMaterials.BirchLeavesDecaying = alphaMaterials[18, 6]
+alphaMaterials.JungleLeaves = alphaMaterials[18, 3]
+alphaMaterials.LeavesPermanent = alphaMaterials[18, 4]
+alphaMaterials.PineLeavesPermanent = alphaMaterials[18, 5]
+alphaMaterials.BirchLeavesPermanent = alphaMaterials[18, 6]
+alphaMaterials.JungleLeavesPermanent = alphaMaterials[18, 7]
+alphaMaterials.LeavesDecaying = alphaMaterials[18, 8]
+alphaMaterials.PineLeavesDecaying = alphaMaterials[18, 9]
+alphaMaterials.BirchLeavesDecaying = alphaMaterials[18, 10]
+alphaMaterials.JungleLeavesDecaying = alphaMaterials[18, 11]
 alphaMaterials.Sponge = alphaMaterials[19, 0]
 alphaMaterials.Glass = alphaMaterials[20, 0]