diff --git a/headers/private/kernel/real_time_clock.h b/headers/private/kernel/real_time_clock.h
index 51937cc56d..960ef2c157 100644
--- a/headers/private/kernel/real_time_clock.h
+++ b/headers/private/kernel/real_time_clock.h
@@ -1,6 +1,6 @@
 /* 
 ** Copyright 2003, Jeff Ward, jeff@r2d2.stcloudstate.edu. All rights reserved.
-** Distributed under the terms of the OpenBeOS License.
+** Distributed under the terms of the Haiku License.
 */
 #ifndef _KERNEL_REAL_TIME_CLOCK_H
 #define _KERNEL_REAL_TIME_CLOCK_H
@@ -13,13 +13,11 @@
 extern "C" {
 #endif
 
-status_t rtc_init(kernel_args *ka);
-	// Initialize the real-time clock.
-
+status_t rtc_init(kernel_args *args);
 bigtime_t rtc_boot_time(void);
 	// Returns the time at which the system was booted in microseconds since Jan 1, 1970.
 
-void _user_set_real_time_clock(uint32 time);
+status_t _user_set_real_time_clock(uint32 time);
 
 #ifdef __cplusplus
 }
diff --git a/headers/private/kernel/syscalls.h b/headers/private/kernel/syscalls.h
index 2343073077..4e8af4a511 100644
--- a/headers/private/kernel/syscalls.h
+++ b/headers/private/kernel/syscalls.h
@@ -183,7 +183,7 @@ extern status_t		_kern_stop_watching(dev_t device, ino_t node, uint32 flags,
 						port_id port, uint32 token);
 
 // time functions
-extern void			_kern_set_real_time_clock(uint32 time);
+extern status_t		_kern_set_real_time_clock(uint32 time);
 
 // area functions
 area_id _kern_create_area(const char *name, void **address, uint32 addressSpec,