diff --git a/BauSystem_Main/src/de/steamwar/bausystem/features/slaves/panzern/Panzern.java b/BauSystem_Main/src/de/steamwar/bausystem/features/slaves/panzern/Panzern.java
index 81740e55..0c168cc4 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/features/slaves/panzern/Panzern.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/features/slaves/panzern/Panzern.java
@@ -119,20 +119,20 @@ public class Panzern {
                 return;
             case SLAB:
                 currentBlock.setType(slabMaterial);
-                editSession.getChangeSet().add(new BlockChange(BukkitAdapter.asBlockVector(currentBlock.getLocation()), airType, slabType));
+                editSession.setBlock(BukkitAdapter.asBlockVector(currentBlock.getLocation()), slabType);
                 break;
             case BLOCK:
             case DEFAULT:
                 currentBlock.setType(blockMaterial);
-                editSession.getChangeSet().add(new BlockChange(BukkitAdapter.asBlockVector(currentBlock.getLocation()), airType, blockType));
+                editSession.setBlock(BukkitAdapter.asBlockVector(currentBlock.getLocation()), blockType);
                 break;
             case UNMOVABLE:
                 currentBlock.setType(Material.JUKEBOX);
-                editSession.getChangeSet().add(new BlockChange(BukkitAdapter.asBlockVector(currentBlock.getLocation()), airType, jukeboxType));
+                editSession.setBlock(BukkitAdapter.asBlockVector(currentBlock.getLocation()), jukeboxType);
                 break;
             case UNMOVABLE_SLAB:
                 currentBlock.setType(Material.COBWEB);
-                editSession.getChangeSet().add(new BlockChange(BukkitAdapter.asBlockVector(currentBlock.getLocation()), airType, cobwebType));
+                editSession.setBlock(BukkitAdapter.asBlockVector(currentBlock.getLocation()), cobwebType);
                 break;
             default:
                 emptyBlocks.add(currentBlock.getLocation().toVector());