diff --git a/engine/battle/move_effects/thief.asm b/engine/battle/move_effects/thief.asm
index 03e3fb6ac..73bbf595e 100644
--- a/engine/battle/move_effects/thief.asm
+++ b/engine/battle/move_effects/thief.asm
@@ -96,7 +96,7 @@ BattleCommand_Thief:
 	jp StdBattleTextbox
 
 .playeritem
-	ld a, 1
+	ld a, MON_ITEM
 	call BattlePartyAttr
 	ld d, h
 	ld e, l
@@ -104,7 +104,7 @@ BattleCommand_Thief:
 	ret
 
 .enemyitem
-	ld a, 1
+	ld a, MON_ITEM
 	call OTPartyAttr
 	ld d, h
 	ld e, l