1 files changed, 3 insertions, 2 deletions
diff --git a/src/libstd/sync/mutex.rs b/src/libstd/sync/mutex.rs
index e56e5a72c13..846a97b547d 100644
--- a/src/libstd/sync/mutex.rs
+++ b/src/libstd/sync/mutex.rs
@@ -334,13 +334,14 @@ impl<'mutex, T: ?Sized> MutexGuard<'mutex, T> {
 impl<'mutex, T: ?Sized> Deref for MutexGuard<'mutex, T> {
     type Target = T;
 
-    fn deref<'a>(&'a self) -> &'a T {
+    fn deref(&self) -> &T {
         unsafe { &*self.__data.get() }
     }
 }
+
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<'mutex, T: ?Sized> DerefMut for MutexGuard<'mutex, T> {
-    fn deref_mut<'a>(&'a mut self) -> &'a mut T {
+    fn deref_mut(&mut self) -> &mut T {
         unsafe { &mut *self.__data.get() }
     }
 }