diff --git a/src/modules/chanlog.rs b/src/modules/chanlog.rs
index baa3f74..673d201 100644
--- a/src/modules/chanlog.rs
+++ b/src/modules/chanlog.rs
@@ -3,7 +3,6 @@
 //! `chanlog = #channel` is configured.
 
 use crate::server::Server;
-use crate::Uid;
 
 /// Tee `msg` to the configured chanlog channel (if set and it exists). Called at
 /// the tail of `Server::snotice`. Read-only over server state, so it can't loop.
@@ -11,12 +10,12 @@ pub fn tee(s: &Server, msg: &str) {
     let Some(chan) = s.conf("chanlog") else {
         return;
     };
-    let Some(ch) = s.channels.get(&chan.to_ascii_lowercase()) else {
+    let key = chan.to_ascii_lowercase();
+    if !s.channels.contains_key(&key) {
         return; // channel not created yet — nothing to log into
-    };
-    let line = format!(":{} NOTICE {chan} :{msg}", s.name);
-    let members: Vec<Uid> = ch.members.keys().copied().collect();
-    for u in members {
-        s.send(u, line.clone());
     }
+    // to_channel builds the line once and shares it by Arc across members (and adds
+    // the server-time tag per recipient) instead of cloning a String per member.
+    let line = format!(":{} NOTICE {chan} :{msg}", s.name);
+    s.to_channel(&key, &line, None);
 }