diff --git a/src/main/java/cpw/mods/ironchest/common/items/chest/ItemIronChest.java b/src/main/java/cpw/mods/ironchest/common/items/chest/ItemIronChest.java
index 4d35ba8..06acc4f 100755
--- a/src/main/java/cpw/mods/ironchest/common/items/chest/ItemIronChest.java
+++ b/src/main/java/cpw/mods/ironchest/common/items/chest/ItemIronChest.java
@@ -37,6 +37,15 @@ public class ItemIronChest extends ItemBlock
     @Override
     public String getUnlocalizedName(ItemStack itemstack)
     {
-        return "tile.ironchest.chest." + IronChestType.VALUES[itemstack.getMetadata()].name().toLowerCase(Locale.US);
+        int meta = itemstack.getMetadata();
+
+        if (meta < IronChestType.VALUES.length)
+        {
+            return "tile.ironchest.chest." + IronChestType.VALUES[itemstack.getMetadata()].name().toLowerCase(Locale.US);
+        }
+        else
+        {
+            return super.getUnlocalizedName(itemstack);
+        }
     }
 }
diff --git a/src/main/java/cpw/mods/ironchest/common/items/shulker/ItemIronShulkerBox.java b/src/main/java/cpw/mods/ironchest/common/items/shulker/ItemIronShulkerBox.java
index c5a5351..193afc2 100644
--- a/src/main/java/cpw/mods/ironchest/common/items/shulker/ItemIronShulkerBox.java
+++ b/src/main/java/cpw/mods/ironchest/common/items/shulker/ItemIronShulkerBox.java
@@ -42,6 +42,15 @@ public class ItemIronShulkerBox extends ItemBlock
     @Override
     public String getUnlocalizedName(ItemStack itemstack)
     {
-        return "tile.ironchest.shulker_box." + IronShulkerBoxType.VALUES[itemstack.getMetadata()].name().toLowerCase(Locale.US) + "." + this.colorName;
+        int meta = itemstack.getMetadata();
+
+        if (meta < IronShulkerBoxType.VALUES.length)
+        {
+            return "tile.ironchest.shulker_box." + IronShulkerBoxType.VALUES[itemstack.getMetadata()].name().toLowerCase(Locale.US) + "." + this.colorName;
+        }
+        else
+        {
+            return super.getUnlocalizedName(itemstack);
+        }
     }
 }