diff --git a/drivers/timer/stm32_lptim_timer.c b/drivers/timer/stm32_lptim_timer.c
index f27b07182cb..bb4e460ec6d 100644
--- a/drivers/timer/stm32_lptim_timer.c
+++ b/drivers/timer/stm32_lptim_timer.c
@@ -435,6 +435,11 @@ static int sys_clock_driver_init(void)
 	/* ARROK bit validates the write operation to ARR register */
 	LL_LPTIM_EnableIT_ARROK(LPTIM);
 	stm32_lptim_wait_ready();
+#ifdef CONFIG_SOC_SERIES_STM32U5X
+	while (LL_LPTIM_IsActiveFlag_DIEROK(LPTIM) == 0) {
+	}
+	LL_LPTIM_ClearFlag_DIEROK(LPTIM);
+#endif
 	LL_LPTIM_ClearFlag_ARROK(LPTIM);
 
 	accumulated_lptim_cnt = 0;