diff --git a/BauSystem_Main/src/de/steamwar/bausystem/features/util/PistonCalculator.java b/BauSystem_Main/src/de/steamwar/bausystem/features/util/PistonCalculator.java
index b72c7aeb..15f0a005 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/features/util/PistonCalculator.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/features/util/PistonCalculator.java
@@ -110,7 +110,7 @@ public class PistonCalculator implements Listener {
     }
 
     private void calcDirection(Block origin, Block blockOrigin, Block calcOrigin, Block ignore, BlockFace facing, BlockFace direction, Set<Block> blockSet, List<Block> toCalc, Set<Location> unmovable) {
-        for (int i = 1; i < 13; i++) {
+        for (int i = 1; i < 24; i++) {
             Block block = calcOrigin.getRelative(direction, i);
             if (block.equals(ignore)) return;
             if (block.getPistonMoveReaction() == PistonMoveReaction.BREAK) return;