diff --git a/src/main/java/de/epiceric/shopchest/config/HologramFormat.java b/src/main/java/de/epiceric/shopchest/config/HologramFormat.java
index 3701381..3123244 100644
--- a/src/main/java/de/epiceric/shopchest/config/HologramFormat.java
+++ b/src/main/java/de/epiceric/shopchest/config/HologramFormat.java
@@ -17,7 +17,7 @@ public class HologramFormat {
 
     public enum Requirement {
         VENDOR, AMOUNT, ITEM_TYPE, ITEM_NAME, HAS_ENCHANTMENT, BUY_PRICE,
-        SELL_PRICE, HAS_POTION_EFFECT, IS_MUSIC_DISC, IS_POTION_EXTENDED, IS_BOOK, ADMIN_SHOP,
+        SELL_PRICE, HAS_POTION_EFFECT, IS_MUSIC_DISC, IS_POTION_EXTENDED, IS_WRITTEN_BOOK, ADMIN_SHOP,
         NORMAL_SHOP, IN_STOCK, MAX_STACK
     }
 
diff --git a/src/main/java/de/epiceric/shopchest/shop/Shop.java b/src/main/java/de/epiceric/shopchest/shop/Shop.java
index 2c336fd..4b6ca84 100644
--- a/src/main/java/de/epiceric/shopchest/shop/Shop.java
+++ b/src/main/java/de/epiceric/shopchest/shop/Shop.java
@@ -7,7 +7,6 @@ import de.epiceric.shopchest.config.Placeholder;
 import de.epiceric.shopchest.exceptions.ChestNotFoundException;
 import de.epiceric.shopchest.exceptions.NotEnoughSpaceException;
 import de.epiceric.shopchest.language.LanguageUtils;
-import de.epiceric.shopchest.nms.CustomBookMeta;
 import de.epiceric.shopchest.nms.Hologram;
 import de.epiceric.shopchest.utils.ItemUtils;
 import de.epiceric.shopchest.utils.Utils;
@@ -193,7 +192,7 @@ public class Shop {
         requirements.put(HologramFormat.Requirement.HAS_POTION_EFFECT, ItemUtils.getPotionEffect(getProduct()) != null);
         requirements.put(HologramFormat.Requirement.IS_MUSIC_DISC, ItemUtils.isMusicDisc(getProduct()));
         requirements.put(HologramFormat.Requirement.IS_POTION_EXTENDED, ItemUtils.isExtendedPotion(getProduct()));
-        requirements.put(HologramFormat.Requirement.IS_BOOK, ItemUtils.getBookGeneration(getProduct()) != null);
+        requirements.put(HologramFormat.Requirement.IS_WRITTEN_BOOK, ItemUtils.getBookGeneration(getProduct()) != null);
         requirements.put(HologramFormat.Requirement.ADMIN_SHOP, getShopType() == ShopType.ADMIN);
         requirements.put(HologramFormat.Requirement.NORMAL_SHOP, getShopType() == ShopType.NORMAL);
         requirements.put(HologramFormat.Requirement.IN_STOCK, Utils.getAmount(getInventoryHolder().getInventory(), getProduct()));
diff --git a/src/main/resources/hologram-format.yml b/src/main/resources/hologram-format.yml
index 4e0ee1d..0a811f1 100644
--- a/src/main/resources/hologram-format.yml
+++ b/src/main/resources/hologram-format.yml
@@ -5,7 +5,7 @@
 # Valid requirements are:
 # VENDOR, AMOUNT, ITEM_TYPE, ITEM_NAME, HAS_ENCHANTMENT, BUY_PRICE,
 # SELL_PRICE, HAS_POTION_EFFECT, IS_MUSIC_DISC, IS_POTION_EXTENDED,
-# IS_BOOK, ADMIN_SHOP, NORMAL_SHOP, IN_STOCK, MAX_STACK
+# IS_WRITTEN_BOOK, ADMIN_SHOP, NORMAL_SHOP, IN_STOCK, MAX_STACK
 #
 # You can also use the requirements for conditions.
 # ITEM_TYPE will return the type of the item (-> item_names.txt),