diff --git a/BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/smartplace/SmartPlaceListener.java b/BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/smartplace/SmartPlaceListener.java
index 75b3f8b7..dd3c61c2 100644
--- a/BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/smartplace/SmartPlaceListener.java
+++ b/BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/smartplace/SmartPlaceListener.java
@@ -223,7 +223,7 @@ public class SmartPlaceListener implements Listener {
             Block block = event.getBlock().getRelative(BlockFace.DOWN);
             BlockState old = block.getState();
             Bukkit.getScheduler().runTaskLater(BauSystem.getInstance(), () -> {
-                block.setType(Material.GLASS);
+                block.setType(Material.GLASS, false);
                 old.update(true, false);
             }, 1);
         }