diff --git a/server-rs/crates/module-runtime/src/membership/upgrade.rs b/server-rs/crates/module-runtime/src/membership/upgrade.rs
index 64a9ae25a..3a6786325 100644
--- a/server-rs/crates/module-runtime/src/membership/upgrade.rs
+++ b/server-rs/crates/module-runtime/src/membership/upgrade.rs
@@ -237,12 +237,10 @@ pub fn check_expired_membership_upgrade_settlement(
 /// 向上取整的整数除法（金额取整到分）。
 ///
 /// 分母是 `MONTHS_PER_YEAR * REMAINING_RATIO_PPM` 这类编译期常量，恒不为 0；
-/// 零分母属程序员错误，`debug_assert` 让它在测试里立刻暴露，而不是被静默算成 0 元。
+/// 零分母属程序员错误，`debug_assert` 让它在测试里立刻暴露，release 下除零 panic，
+/// 而不是被静默算成 0 元。
 fn ceil_div(numerator: u128, denominator: u128) -> u64 {
     debug_assert!(denominator != 0, "ceil_div 的分母不能为 0");
-    if denominator == 0 {
-        return 0;
-    }
     ((numerator + denominator - 1) / denominator) as u64
 }