diff --git a/src/modifier/modifier.ts b/src/modifier/modifier.ts
index cf9cf78225e..fd738060506 100644
--- a/src/modifier/modifier.ts
+++ b/src/modifier/modifier.ts
@@ -2598,7 +2598,8 @@ export class HealShopCostModifier extends PersistentModifier {
   }
 
   apply(args: any[]): boolean {
-    (args[0] as Utils.IntegerHolder).value *= this.shopMultiplier;
+    const moneyCost = args[0] as Utils.NumberHolder;
+    moneyCost.value = Math.floor(moneyCost.value * this.shopMultiplier);
 
     return true;
   }