diff --git a/src/main/java/com/github/crashdemons/playerheads/VanillaSkullType.java b/src/main/java/com/github/crashdemons/playerheads/VanillaSkullType.java
index 584c99c9..0910a66b 100644
--- a/src/main/java/com/github/crashdemons/playerheads/VanillaSkullType.java
+++ b/src/main/java/com/github/crashdemons/playerheads/VanillaSkullType.java
@@ -30,6 +30,8 @@ private static class Mappings{
     }
 
     VanillaSkullType(Material mat, Material wallMat){
+        material=mat;
+        wallMaterial=wallMat;
         Mappings.skullTypeByMaterial.put(mat, this);
         Mappings.skullTypeByMaterial.put(wallMat, this);
     }