diff --git a/lib/routes/xiaoheihe/discount.js b/lib/routes/xiaoheihe/discount.js
index 5968ab6a5..d2722fae6 100644
--- a/lib/routes/xiaoheihe/discount.js
+++ b/lib/routes/xiaoheihe/discount.js
@@ -45,7 +45,7 @@ module.exports = async (ctx) => {
                         description += `折扣力度: ${(100 - item.price.discount) / 10}折<br/>`;
                     }
                     if (item.price.initial && item.price.discount) {
-                        const current = Math.round(item.price.initial * (100 - item.price.discount) / 100);
+                        const current = Math.round((item.price.initial * (100 - item.price.discount)) / 100);
                         description += `当前价格: ${current}${item.price.discount === item.price.lowest_discount ? '[史低]' : ''}&nbsp;&nbsp;`;
                     }
                     if (item.price.initial) {