diff --git a/BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/util/MaterialLazyInit.java b/BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/util/MaterialLazyInit.java
index f05e0de9..4f174c12 100644
--- a/BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/util/MaterialLazyInit.java
+++ b/BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/util/MaterialLazyInit.java
@@ -87,6 +87,7 @@ public class MaterialLazyInit {
                 Block block = Bukkit.getWorlds().get(0).getBlockAt(0, 0, 0);
                 block.setType(material);
                 unmoveable = block.getPistonMoveReaction() == PistonMoveReaction.BLOCK || block.getPistonMoveReaction() == PistonMoveReaction.IGNORE || block.getState() instanceof TileState;
+                block.setType(Material.AIR);
             }
 
             if (material.isItem() && material != Material.AIR) {