diff --git a/src/main/java/tconstruct/library/crafting/Smeltery.java b/src/main/java/tconstruct/library/crafting/Smeltery.java
index e7f89954..888fe929 100644
--- a/src/main/java/tconstruct/library/crafting/Smeltery.java
+++ b/src/main/java/tconstruct/library/crafting/Smeltery.java
@@ -243,7 +243,7 @@ public class Smeltery
         @Override
         public int hashCode ()
         {
-            return Item.getIdFromItem(this.input) << 16 | this.meta;
+            return this.input.hashCode() << 16 | this.meta;
         }
 
         @Override