diff --git a/src/main/java/com/eu/habbo/habbohotel/items/interactions/wired/effects/WiredEffectTriggerStacks.java b/src/main/java/com/eu/habbo/habbohotel/items/interactions/wired/effects/WiredEffectTriggerStacks.java
index 9e51f95c..675495c5 100644
--- a/src/main/java/com/eu/habbo/habbohotel/items/interactions/wired/effects/WiredEffectTriggerStacks.java
+++ b/src/main/java/com/eu/habbo/habbohotel/items/interactions/wired/effects/WiredEffectTriggerStacks.java
@@ -119,7 +119,7 @@ public class WiredEffectTriggerStacks extends InteractionWiredEffect
     @Override
     public boolean execute(RoomUnit roomUnit, Room room, Object[] stuff)
     {
-        if (stuff.length >= 1 && stuff[stuff.length - 1] instanceof WiredEffectTriggerStacks)
+        if (stuff != null && stuff.length >= 1 && stuff[stuff.length - 1] instanceof WiredEffectTriggerStacks)
         {
             return false;
         }