diff --git a/kernel/include/signal.h b/kernel/include/signal.h
index 50ebb1bf7d1d56d1cb4348872a0524b9be7e0d69..de862d90f4ce92e9af00b31387e1eac043866aa1 100644
--- a/kernel/include/signal.h
+++ b/kernel/include/signal.h
@@ -152,6 +152,13 @@ struct sigevent {
     void *sigev_notify_attributes;
 };
 
+struct ksigevent {
+	union sigval sigev_value;
+	int sigev_signo;
+	int sigev_notify;
+	int sigev_tid;
+};
+
 #define SIGEV_SIGNAL 0
 #define SIGEV_NONE 1
 #define SIGEV_THREAD 2
diff --git a/kernel/include/time.h b/kernel/include/time.h
index 7c7b34776665304afc1bf812ef3ef7a4c413295d..a7de0e7aeb41cf63d2024b178773e9ce012e7b0d 100644
--- a/kernel/include/time.h
+++ b/kernel/include/time.h
@@ -118,8 +118,8 @@ int clock_settime (clockid_t, const struct timespec *);
 int clock_nanosleep (clockid_t, int, const struct timespec *, struct timespec *);
 int clock_getcpuclockid (pid_t, clockid_t *);
 
-struct sigevent;
-int timer_create (clockid_t, struct sigevent *__restrict, timer_t *__restrict);
+struct ksigevent;
+int OsTimerCreate (clockid_t, struct ksigevent *__restrict, timer_t *__restrict);
 int timer_delete (timer_t);
 int timer_settime (timer_t, int, const struct itimerspec *__restrict, struct itimerspec *__restrict);
 int timer_gettime (timer_t, struct itimerspec *);