diff --git a/drivers/rtc/systohc.c b/drivers/rtc/systohc.c
index 0c177647ea6c..718293d72426 100644
--- a/drivers/rtc/systohc.c
+++ b/drivers/rtc/systohc.c
@@ -20,7 +20,7 @@
  * cases.
  *
  * -EPROTO is returned if now.tv_nsec is not close enough to *target_nsec.
- (
+ *
  * If temporary failure is indicated the caller should try again 'soon'
  */
 int rtc_set_ntp_time(struct timespec64 now, unsigned long *target_nsec)