diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/sets/util/ArmorUtils.java b/eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/sets/util/ArmorUtils.java
index 0fca0ca..922650d 100644
--- a/eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/sets/util/ArmorUtils.java
+++ b/eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/sets/util/ArmorUtils.java
@@ -140,6 +140,7 @@ public class ArmorUtils {
      */
     @Nullable
     public static String getCrystalTier(@NotNull final ItemStack itemStack) {
+        // I have no idea when null gets passed but it broke crystal crafting so this check goes here.
         if (itemStack == null) {
             return null;
         }