diff --git a/src/main/java/com/kyanite/deeperdarker/content/DDItems.java b/src/main/java/com/kyanite/deeperdarker/content/DDItems.java
index fb17ac4f3..ccc967a45 100644
--- a/src/main/java/com/kyanite/deeperdarker/content/DDItems.java
+++ b/src/main/java/com/kyanite/deeperdarker/content/DDItems.java
@@ -31,7 +31,7 @@ public class DDItems {
     public static final RegistryObject<Item> SCULK_BONE = ITEMS.register("sculk_bone", () -> new Item(new Item.Properties()));
     public static final RegistryObject<Item> SOUL_DUST = ITEMS.register("soul_dust", () -> new Item(new Item.Properties()));
     public static final RegistryObject<Item> SOUL_CRYSTAL = ITEMS.register("soul_crystal", () -> new Item(new Item.Properties()));
-    public static final RegistryObject<Item> HEART_OF_THE_DEEP = ITEMS.register("heart_of_the_deep", () -> new WardenHeartItem(new Item.Properties().rarity(Rarity.EPIC).fireResistant()));
+    public static final RegistryObject<Item> HEART_OF_THE_DEEP = ITEMS.register("heart_of_the_deep", () -> new WardenHeartItem(new Item.Properties().rarity(Rarity.EPIC).stacksTo(1).fireResistant()));
     public static final RegistryObject<Item> WARDEN_CARAPACE = ITEMS.register("warden_carapace", () -> new Item(new Item.Properties().rarity(Rarity.RARE).fireResistant()));
     public static final RegistryObject<Item> REINFORCED_ECHO_SHARD = ITEMS.register("reinforced_echo_shard", () -> new Item(new Item.Properties().rarity(Rarity.RARE).fireResistant()));