diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index 8e4ce8ade88c..aff7e3b64d84 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -987,6 +987,7 @@ static void check_process_timers(struct task_struct *tsk,
  */
 static void posix_cpu_timer_rearm(struct k_itimer *timer)
 {
+	clockid_t clkid = CPUCLOCK_WHICH(timer->it_clock);
 	struct task_struct *p = timer->it.cpu.task;
 	struct sighand_struct *sighand;
 	unsigned long flags;
@@ -999,7 +1000,7 @@ static void posix_cpu_timer_rearm(struct k_itimer *timer)
 	 * Fetch the current sample and update the timer's expiry time.
 	 */
 	if (CPUCLOCK_PERTHREAD(timer->it_clock)) {
-		cpu_clock_sample(timer->it_clock, p, &now);
+		cpu_clock_sample(clkid, p, &now);
 		bump_cpu_timer(timer, now);
 		if (unlikely(p->exit_state))
 			return;
@@ -1025,7 +1026,7 @@ static void posix_cpu_timer_rearm(struct k_itimer *timer)
 			/* If the process is dying, no need to rearm */
 			goto unlock;
 		}
-		cpu_clock_sample_group(timer->it_clock, p, &now, true);
+		cpu_clock_sample_group(clkid, p, &now, true);
 		bump_cpu_timer(timer, now);
 		/* Leave the sighand locked for the call below.  */
 	}