diff --git a/pom.xml b/pom.xml
index 9314288..2514de3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2,7 +2,7 @@
com.songoda
UltimateStacker
4.0.0
- 1.11.8
+ 1.11.9
clean install
UltimateStacker-${project.version}
diff --git a/src/main/java/com/songoda/ultimatestacker/listeners/ItemListeners.java b/src/main/java/com/songoda/ultimatestacker/listeners/ItemListeners.java
index d3c06d6..3d925ef 100644
--- a/src/main/java/com/songoda/ultimatestacker/listeners/ItemListeners.java
+++ b/src/main/java/com/songoda/ultimatestacker/listeners/ItemListeners.java
@@ -95,6 +95,7 @@ public class ItemListeners implements Listener {
Item item = event.getItem();
ItemStack stack = item.getItemStack();
+ if (stack.getMaxStackSize() == 1) return;
int amount = UltimateStacker.getActualItemAmount(item);
if (amount < (stack.getMaxStackSize() / 2)) return;
diff --git a/src/main/java/com/songoda/ultimatestacker/utils/EntityUtils.java b/src/main/java/com/songoda/ultimatestacker/utils/EntityUtils.java
index 7497071..fa88745 100644
--- a/src/main/java/com/songoda/ultimatestacker/utils/EntityUtils.java
+++ b/src/main/java/com/songoda/ultimatestacker/utils/EntityUtils.java
@@ -13,7 +13,6 @@ import org.bukkit.entity.*;
import org.bukkit.inventory.EntityEquipment;
import java.util.*;
-import java.util.stream.Collectors;
public class EntityUtils {