diff --git a/codex-rs/login/src/server.rs b/codex-rs/login/src/server.rs
index 8e398ce89..9b6f835bb 100644
--- a/codex-rs/login/src/server.rs
+++ b/codex-rs/login/src/server.rs
@@ -129,7 +129,7 @@ pub struct ShutdownHandle {
 impl ShutdownHandle {
     /// Signals the login loop to terminate.
     pub fn shutdown(&self) {
-        self.shutdown_notify.notify_waiters();
+        self.shutdown_notify.notify_one();
     }
 }