diff --git a/src/main/java/gtPlusPlus/core/util/minecraft/ItemUtils.java b/src/main/java/gtPlusPlus/core/util/minecraft/ItemUtils.java
index 930ab6c34a9..3565b1c14d7 100644
--- a/src/main/java/gtPlusPlus/core/util/minecraft/ItemUtils.java
+++ b/src/main/java/gtPlusPlus/core/util/minecraft/ItemUtils.java
@@ -860,7 +860,7 @@ public static ItemStack[] cleanItemStackArray(ItemStack[] input) {
                 aCleanedItems.add(checkStack);
             }
         }
-        for (int i = 0; i < aArraySize; i++) {
+        for (int i = 0; i < aCleanedItems.size(); i++) {
             ItemStack aMappedStack = aCleanedItems.get(i);
             if (aMappedStack != null) {
                 aOutput[i] = aMappedStack;