diff --git a/src/main/java/com/songoda/ultimatestacker/events/InteractListeners.java b/src/main/java/com/songoda/ultimatestacker/events/InteractListeners.java
index 338af82..1dfc2ff 100644
--- a/src/main/java/com/songoda/ultimatestacker/events/InteractListeners.java
+++ b/src/main/java/com/songoda/ultimatestacker/events/InteractListeners.java
@@ -26,6 +26,8 @@ public class InteractListeners implements Listener {
     @EventHandler
     public void onAccept(InventoryPickupItemEvent event) {
         ItemStack item = event.getItem().getItemStack();
+        if (new ItemStack(item.getType()).getMaxStackSize() == item.getMaxStackSize()) return;
+        
         instance.getStackingTask().setMax(item, 0, true);
         int amt = item.getAmount();
         int max = item.getMaxStackSize();
diff --git a/src/main/java/com/songoda/ultimatestacker/tasks/StackingTask.java b/src/main/java/com/songoda/ultimatestacker/tasks/StackingTask.java
index 8cd63e2..9e76865 100644
--- a/src/main/java/com/songoda/ultimatestacker/tasks/StackingTask.java
+++ b/src/main/java/com/songoda/ultimatestacker/tasks/StackingTask.java
@@ -60,6 +60,8 @@ public class StackingTask extends BukkitRunnable {
                 if (entityO instanceof Item && instance.getConfig().getBoolean("Main.Stack Items")) {
                     ItemStack item = ((Item) entityO).getItemStack();
 
+                    if (entityO.hasMetadata("grabbed")) continue;
+
                     if (entityO.isCustomNameVisible() && !entityO.getCustomName().contains(TextComponent.convertToInvisibleString("IS")) || item.hasItemMeta() && item.getItemMeta().hasDisplayName())
                         continue;