diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index 1dee3f62a6a7d77837a10382b6e106bc0b85f65d..0e9263f6fd097c62d40600e246015b92e34de934 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -441,6 +441,8 @@ static int alarm_timer_create(struct k_itimer *new_timer)
 static void alarm_timer_get(struct k_itimer *timr,
 				struct itimerspec *cur_setting)
 {
+	memset(cur_setting, 0, sizeof(struct itimerspec));
+
 	cur_setting->it_interval =
 			ktime_to_timespec(timr->it.alarmtimer.period);
 	cur_setting->it_value =