diff --git a/src/config/hot_reload.rs b/src/config/hot_reload.rs
index 80f1b5c..e89ff95 100644
--- a/src/config/hot_reload.rs
+++ b/src/config/hot_reload.rs
@@ -36,8 +36,8 @@ use tracing::{error, info, warn};
 
 use super::load::{LoadedConfig, ProxyConfig};
 use crate::config::{
-    ListenerConfig, LogLevel, MeBindStaleMode, MeFloorMode, MeSocksKdfPolicy, MeTelemetryLevel,
-    MeWriterPickMode, SynLimitMode,
+    CidrRateLimitKey, ListenerConfig, LogLevel, MeBindStaleMode, MeFloorMode, MeSocksKdfPolicy,
+    MeTelemetryLevel, MeWriterPickMode, SynLimitMode,
 };
 
 const HOT_RELOAD_DEBOUNCE: Duration = Duration::from_millis(50);
@@ -128,8 +128,7 @@ pub struct HotFields {
     pub user_expirations: std::collections::HashMap<String, chrono::DateTime<chrono::Utc>>,
     pub user_data_quota: std::collections::HashMap<String, u64>,
     pub user_rate_limits: std::collections::HashMap<String, crate::config::RateLimitBps>,
-    pub cidr_rate_limits:
-        std::collections::HashMap<ipnetwork::IpNetwork, crate::config::RateLimitBps>,
+    pub cidr_rate_limits: std::collections::HashMap<CidrRateLimitKey, crate::config::RateLimitBps>,
     pub user_max_unique_ips: std::collections::HashMap<String, usize>,
     pub user_max_unique_ips_global_each: usize,
     pub user_max_unique_ips_mode: crate::config::UserMaxUniqueIpsMode,