diff --git a/Items.md b/Items.md
index de2af01..42bb68e 100644
--- a/Items.md
+++ b/Items.md
@@ -2,5 +2,5 @@
 | Name | Item ID |
 | - | - |
 | Biomass | `0x0001` |
-| Iron | undefined |
+| Iron | `0x0003` |
 | Copper | `0x0004` |
\ No newline at end of file