1 files changed, 1 insertions, 1 deletions
diff --git a/src/libnative/io/timer_helper.rs b/src/libnative/io/timer_helper.rs
index c5b6705ceaa..e5f70c4e4b3 100644
--- a/src/libnative/io/timer_helper.rs
+++ b/src/libnative/io/timer_helper.rs
@@ -75,7 +75,7 @@ pub fn send(req: Req) {
 fn shutdown() {
     // Request a shutdown, and then wait for the task to exit
     unsafe {
-        let mut guard = TIMER_HELPER_EXIT.lock();
+        let guard = TIMER_HELPER_EXIT.lock();
         send(Shutdown);
         guard.wait();
         drop(guard);