diff --git a/data/items.js b/data/items.js
index 7704780db5..de732f4fef 100644
--- a/data/items.js
+++ b/data/items.js
@@ -2297,6 +2297,7 @@ exports.BattleItems = {
 		name: "Mail",
 		spritenum: 403,
 		onTakeItem: false,
+		isUnreleased: true,
 		gen: 2,
 		desc: "This item cannot be given to or taken from a Pokemon, except by Knock Off."
 	},