diff --git a/asm/ov00/Item/ItemManager.s b/asm/ov00/Item/ItemManager.s
index 044bbf47..a89633d1 100644
--- a/asm/ov00/Item/ItemManager.s
+++ b/asm/ov00/Item/ItemManager.s
@@ -1,31 +1,6 @@
     .include "macros/function.inc"
     .include "ov00/Item/ItemManager.inc"
 
-	.text
-
-	.global _ZN11ItemManager21AddTreasurePriceShownEj
-	thumb_func_start _ZN11ItemManager21AddTreasurePriceShownEj
-_ZN11ItemManager21AddTreasurePriceShownEj: ; 0x020ae76c
-	push {r4, r5}
-	mov r2, #0x52
-	lsl r2, r2, #2
-	add r2, r0, r2
-	lsr r0, r1, #5
-	lsl r0, r0, #2
-	mov r3, #0x1f
-	mov r4, #1
-	and r1, r3
-	add r3, r4, #0
-	ldr r5, [r2, r0]
-	lsl r3, r1
-	add r1, r5, #0
-	orr r1, r3
-	str r1, [r2, r0]
-	pop {r4, r5}
-	bx lr
-	.align 2, 0
-	thumb_func_end _ZN11ItemManager21AddTreasurePriceShownEj
-
     .rodata
 
     .data
diff --git a/src/00_Core/Item/ItemManager.cpp b/src/00_Core/Item/ItemManager.cpp
index 23c5b080..418555ac 100644
--- a/src/00_Core/Item/ItemManager.cpp
+++ b/src/00_Core/Item/ItemManager.cpp
@@ -977,3 +977,7 @@ THUMB void ItemManager::AddShipPartPriceShown(ShipPart part, ShipType type) {
 THUMB bool ItemManager::HasTreasurePriceShown(Treasure treasure) const {
     return GET_FLAG(mTreasurePriceShownFlags, treasure);
 }
+
+THUMB void ItemManager::AddTreasurePriceShown(Treasure treasure) {
+    SET_FLAG(mTreasurePriceShownFlags, treasure);
+}