diff --git a/BauSystem_15/src/de/steamwar/bausystem/features/slaves/MaterialUtils_15.java b/BauSystem_15/src/de/steamwar/bausystem/features/slaves/MaterialUtils_15.java
index 26b8cf9b..d8a0df55 100644
--- a/BauSystem_15/src/de/steamwar/bausystem/features/slaves/MaterialUtils_15.java
+++ b/BauSystem_15/src/de/steamwar/bausystem/features/slaves/MaterialUtils_15.java
@@ -20,6 +20,7 @@
 package de.steamwar.bausystem.features.slaves;
 
 import lombok.experimental.UtilityClass;
+import net.minecraft.server.v1_15_R1.WorldGenVines;
 import org.bukkit.Material;
 
 import java.util.Arrays;
@@ -31,6 +32,9 @@ public class MaterialUtils_15 {
 
     private static Set<Material> unpushable = new HashSet<>(Arrays.asList(Material.BARRIER, Material.BEACON, Material.COMMAND_BLOCK, Material.CHAIN_COMMAND_BLOCK, Material.REPEATING_COMMAND_BLOCK, Material.ENCHANTING_TABLE, Material.END_GATEWAY, Material.END_PORTAL, Material.ENDER_CHEST, Material.GRINDSTONE, Material.JIGSAW, Material.JUKEBOX, Material.NETHER_PORTAL, Material.OBSIDIAN, Material.STRUCTURE_VOID, Material.BARREL, Material.BEEHIVE, Material.BEE_NEST, Material.BLAST_FURNACE, Material.BREWING_STAND, Material.CHEST, Material.DAYLIGHT_DETECTOR, Material.DISPENSER, Material.DROPPER, Material.FURNACE, Material.HOPPER, Material.LECTERN, Material.SMOKER, Material.TRAPPED_CHEST));
 
+    // TODO: FLOWER
+    private static Set<Material> breaking = new HashSet<>(Arrays.asList(Material.BAMBOO, Material.CACTUS, Material.CAKE, Material.CARVED_PUMPKIN, Material.CHORUS_FLOWER, Material.CHORUS_PLANT, Material.COBWEB, Material.COCOA, Material.DRAGON_EGG, Material.FIRE, Material.FLOWER_POT, Material.JACK_O_LANTERN, Material.LADDER, Material.LAVA, Material.LAVA, Material.LEVER, Material.LILY_PAD, Material.MELON, Material.NETHER_WART, Material.PUMPKIN, Material.COMPARATOR, Material.REDSTONE_WIRE, Material.REPEATER, Material.TORCH, Material.STRUCTURE_VOID, Material.SCAFFOLDING, Material.SEA_PICKLE, Material.SNOW, Material.SUGAR_CANE, Material.TORCH, Material.TRIPWIRE, Material.TRIPWIRE_HOOK, Material.TURTLE_EGG, Material.VINE, Material.WATER, Material.WHEAT));
+
     static boolean isUnpusheable(Material material) {
         if (unpushable.contains(material)) {
             return true;
@@ -38,4 +42,12 @@ public class MaterialUtils_15 {
         String name = material.name();
         return name.contains("BANNER") || name.contains("SIGN");
     }
+
+    static boolean isBreakingOnPush(Material material) {
+        if (breaking.contains(material)) {
+            return true;
+        }
+        String name = material.name();
+        return name.contains("BED") || name.contains("BUTTON") || name.contains("CARPET") || (name.contains("DOOR") && !name.contains("TRAPDOOR")) || name.contains("HEAD") || name.contains("LEAVES") || name.contains("MUSHROOM") || name.contains("PRESSURE_PLATE") || name.contains("SHULKER_BOX");
+    }
 }
diff --git a/BauSystem_Main/src/de/steamwar/bausystem/features/slaves/MaterialUtils.java b/BauSystem_Main/src/de/steamwar/bausystem/features/slaves/MaterialUtils.java
index 4ff1695f..35c27649 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/features/slaves/MaterialUtils.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/features/slaves/MaterialUtils.java
@@ -29,4 +29,10 @@ public class MaterialUtils {
                 new VersionedCallable<>(() -> MaterialUtils_15.isUnpusheable(material), 15)
         );
     }
+
+    public static boolean isBreakingOnPush(Material material) {
+        return VersionedCallable.call(
+                new VersionedCallable<>(() -> MaterialUtils_15.isBreakingOnPush(material), 15)
+        );
+    }
 }
diff --git a/BauSystem_Main/src/de/steamwar/bausystem/features/slaves/panzern/algorithms/PistonLine.java b/BauSystem_Main/src/de/steamwar/bausystem/features/slaves/panzern/algorithms/PistonLine.java
index 68349d6f..de5c04f2 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/features/slaves/panzern/algorithms/PistonLine.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/features/slaves/panzern/algorithms/PistonLine.java
@@ -49,6 +49,9 @@ public class PistonLine implements PanzernAlgorithm {
                     if (MaterialUtils.isUnpusheable(relativeBlock.getType())) {
                         break;
                     }
+                    if (MaterialUtils.isBreakingOnPush(relativeBlock.getType())) {
+                        break;
+                    }
                     continue;
                 }
                 Piston piston = (Piston) blockData;