diff --git a/sys/sys/sched.h b/sys/sys/sched.h
index 1cefda7e5c75..d472fcb0a2f0 100644
--- a/sys/sys/sched.h
+++ b/sys/sys/sched.h
@@ -76,9 +76,9 @@ void	sched_rem(struct thread *td);
  * hold a thread on a particular CPU.
  */
 void	sched_bind(struct thread *td, int cpu);
-static __inline void sched_pin(struct thread *td);
+static __inline void sched_pin(void);
 void	sched_unbind(struct thread *td);
-static __inline void sched_unpin(struct thread *td);
+static __inline void sched_unpin(void);
 
 /*
  * These interfaces will eventually be removed.
@@ -101,15 +101,15 @@ extern struct p_sched *proc0_sched;
 extern struct td_sched *thread0_sched;
 
 static __inline void
-sched_pin(struct thread *td)
+sched_pin(void)
 {
-	td->td_pinned++;
+	curthread->td_pinned++;
 }
 
 static __inline void
-sched_unpin(struct thread *td)
+sched_unpin(void)
 {
-	td->td_pinned--;
+	curthread->td_pinned--;
 }
 
 #endif /* !_SYS_SCHED_H_ */