diff --git a/BauSystem/BauSystem_21/src/de/steamwar/bausystem/utils/NMSWrapper21.java b/BauSystem/BauSystem_21/src/de/steamwar/bausystem/utils/NMSWrapper21.java
index 8d59ffa9..816b9bd7 100644
--- a/BauSystem/BauSystem_21/src/de/steamwar/bausystem/utils/NMSWrapper21.java
+++ b/BauSystem/BauSystem_21/src/de/steamwar/bausystem/utils/NMSWrapper21.java
@@ -94,7 +94,7 @@ public class NMSWrapper21 implements NMSWrapper {
             return false;
         }
 
-        return drillDown(data.contents(), 0, 0) <= threshold;
+        return drillDown(data.contents(), 0, 0) > threshold;
     }
 
     private int drillDown(List<ItemStack> items, int layer, int start) {