diff --git a/me/cluster/implementations/CraftingCPUCluster.java b/me/cluster/implementations/CraftingCPUCluster.java
index 068386c1e..484d25d08 100644
--- a/me/cluster/implementations/CraftingCPUCluster.java
+++ b/me/cluster/implementations/CraftingCPUCluster.java
@@ -608,8 +608,11 @@ public class CraftingCPUCluster implements IAECluster, ICraftingCPU
 										{
 											postChange( input[x], machineSrc );
 											ic.setInventorySlotContents( x, is );
-											found = true;
-											continue;
+											if ( is.stackSize == input[x].getStackSize() )
+											{
+												found = true;
+												continue;
+											}
 										}
 									}