diff --git a/features/category/src/main/java/net/okocraft/box/feature/category/internal/category/defaults/DefaultCategories.java b/features/category/src/main/java/net/okocraft/box/feature/category/internal/category/defaults/DefaultCategories.java
index 072e3eff61..e8007c2d4f 100644
--- a/features/category/src/main/java/net/okocraft/box/feature/category/internal/category/defaults/DefaultCategories.java
+++ b/features/category/src/main/java/net/okocraft/box/feature/category/internal/category/defaults/DefaultCategories.java
@@ -120,7 +120,7 @@ static List<DefaultCategory> collectCurrentDefaultCategories(@NotNull ItemVersio
                 DefaultCategory.builder().key("armors").icon(Material.LEATHER_HELMET).items(categorizedItemMap.get("armors")).addDefaultDisplayName("Armors").addDisplayName(JAPANESE, "防具").build(),
                 DefaultCategory.builder().key("enchanted-books").icon(Material.ENCHANTED_BOOK).items(categorizedItemMap.get("enchanted-books")).addDefaultDisplayName("Enchanted Books").addDisplayName(JAPANESE, "エンチャント本").build(),
                 DefaultCategory.builder().key("potions").icon(Material.POTION).items(categorizedItemMap.get("potions")).addDefaultDisplayName("Potions").addDisplayName(JAPANESE, "ポーション").build(),
-                DefaultCategory.builder().key("horse").icon(Material.SADDLE).items(categorizedItemMap.get("horse")).addDefaultDisplayName("Horse").addDisplayName(JAPANESE, "馬").build(),
+                DefaultCategory.builder().key("mob-equipment").icon(Material.SADDLE).items(categorizedItemMap.get("horse")).addDefaultDisplayName("Mob Equipment").addDisplayName(JAPANESE, "モブ用装備").build(),
                 DefaultCategory.builder().key("music-discs").icon(Material.MUSIC_DISC_CAT).items(categorizedItemMap.get("music-discs")).addDefaultDisplayName("Music Discs").addDisplayName(JAPANESE, "ディスク").build(),
                 DefaultCategory.builder().key("spawn-eggs").icon(Material.COW_SPAWN_EGG).items(categorizedItemMap.get("spawn-eggs")).addDefaultDisplayName("Spawn Eggs").addDisplayName(JAPANESE, "スポーンエッグ").build(),
                 DefaultCategory.builder().key("unavailable").icon(Material.BEDROCK).items(categorizedItemMap.get("unavailable")).addDefaultDisplayName("Unavailable").addDisplayName(JAPANESE, "入手不可").build()
diff --git a/features/category/src/main/java/net/okocraft/box/feature/category/internal/file/CategoryFile.java b/features/category/src/main/java/net/okocraft/box/feature/category/internal/file/CategoryFile.java
index eac49beed4..0a5cfee201 100644
--- a/features/category/src/main/java/net/okocraft/box/feature/category/internal/file/CategoryFile.java
+++ b/features/category/src/main/java/net/okocraft/box/feature/category/internal/file/CategoryFile.java
@@ -210,10 +210,11 @@ private void loadAndRegisterCategory(@NotNull String key, @NotNull MapNode sourc
     }
 
     private static Object renameKey(@NotNull Object key) {
-        if (key.equals("woods")) {
-            return "woods-1";
-        }
-        return key;
+        return switch (String.valueOf(key)) {
+            case "woods" -> "woods-1";
+            case "horse" -> "mob-equipment";
+            default -> key;
+        };
     }
 
     private static void addDefaultDisplayName(@NotNull String key, @NotNull MapNode target) {
@@ -233,7 +234,7 @@ private static void addDefaultDisplayName(@NotNull String key, @NotNull MapNode
             case "farms" -> Map.of(LOCALE_DEFAULT, "Farms", "ja", "農業・食料");
             case "flowers" -> Map.of(LOCALE_DEFAULT, "Flowers", "ja", "草花");
             case "glasses" -> Map.of(LOCALE_DEFAULT, "Glasses", "ja", "ガラス");
-            case "horse" -> Map.of(LOCALE_DEFAULT, "Horse", "ja", "馬");
+            case "horse" -> Map.of(LOCALE_DEFAULT, "Mob Equipment", "ja", "モブ用装備");
             case "misc" -> Map.of(LOCALE_DEFAULT, "Misc", "ja", "その他");
             case "mob-drops" -> Map.of(LOCALE_DEFAULT, "Mob Drops", "ja", "モブドロップ品");
             case "mushrooms" -> Map.of(LOCALE_DEFAULT, "Mushrooms", "ja", "きのこ");
diff --git a/features/category/src/main/resources/default_categories.yml b/features/category/src/main/resources/default_categories.yml
index 6cb239b89a..04cc2dbc49 100644
--- a/features/category/src/main/resources/default_categories.yml
+++ b/features/category/src/main/resources/default_categories.yml
@@ -1378,7 +1378,7 @@ potions:
   - LINGERING_POTION_LONG_WATER_BREATHING
   - LINGERING_POTION_WEAKNESS
   - LINGERING_POTION_LONG_WEAKNESS
-horse:
+mob-equipment:
   - SADDLE
   - LEATHER_HORSE_ARMOR
   - IRON_HORSE_ARMOR