diff --git a/Core/src/main/java/com/craftaro/core/hooks/stackers/UltimateStacker.java b/Core/src/main/java/com/craftaro/core/hooks/stackers/UltimateStacker.java
index 5a59021e..d9757369 100644
--- a/Core/src/main/java/com/craftaro/core/hooks/stackers/UltimateStacker.java
+++ b/Core/src/main/java/com/craftaro/core/hooks/stackers/UltimateStacker.java
@@ -37,7 +37,7 @@ public class UltimateStacker extends Stacker {
 
     @Override
     public void setItemAmount(Item item, int amount) {
-        UltimateStackerApi.getStackedItemManager().getStackedItem(item, true).setAmount(amount);
+        UltimateStackerApi.getStackedItemManager().updateStack(item, amount);
     }
 
     @Override