diff --git a/src/kernel/synch.rs b/src/kernel/synch.rs
index a7a5be2..d4e349c 100644
--- a/src/kernel/synch.rs
+++ b/src/kernel/synch.rs
@@ -72,7 +72,7 @@ pub struct Lock{
 
 }
 
-impl<'t> Lock {
+impl Lock {
 
     ///    Wait until the lock become free.  Checking the
     ///	state of the lock (free or busy) and modify it must be done
@@ -136,7 +136,7 @@ pub struct Condition{
     
 }
 
-impl<'t> Condition {
+impl Condition {
 
     ///  Block the calling thread (put it in the wait queue).
     ///  This operation must be atomic, so we need to disable interrupts.