diff --git a/src/main/java/appeng/parts/misc/ItemHandlerAdapter.java b/src/main/java/appeng/parts/misc/ItemHandlerAdapter.java
index b1dd5d976..08c3148ef 100644
--- a/src/main/java/appeng/parts/misc/ItemHandlerAdapter.java
+++ b/src/main/java/appeng/parts/misc/ItemHandlerAdapter.java
@@ -329,6 +329,7 @@ class ItemHandlerAdapter implements IMEInventory<IAEItemStack>, IBaseMonitor<IAE
 
 				// Reduce the cache size
 				this.cachedAeStacks = Arrays.copyOf( this.cachedAeStacks, slots );
+				this.skipSlots = new ArrayList<>(this.itemHandler.getSlots());
 			}
 
 			return changes;