diff --git a/boards/px4/fmu-v5x/nuttx-config/nsh/defconfig b/boards/px4/fmu-v5x/nuttx-config/nsh/defconfig
index 8d5cf56acd..1ef345f1e0 100644
--- a/boards/px4/fmu-v5x/nuttx-config/nsh/defconfig
+++ b/boards/px4/fmu-v5x/nuttx-config/nsh/defconfig
@@ -208,6 +208,8 @@ CONFIG_STM32F7_PHY_POLLING=y
 CONFIG_STM32F7_PROGMEM=y
 CONFIG_STM32F7_PWR=y
 CONFIG_STM32F7_RTC=y
+CONFIG_STM32F7_RTC_LSECLOCK_RUN_DRV_CAPABILITY=3
+CONFIG_STM32F7_RTC_LSECLOCK_START_DRV_CAPABILITY=3
 CONFIG_STM32F7_RTC_MAGIC_REG=1
 CONFIG_STM32F7_SAVE_CRASHDUMP=y
 CONFIG_STM32F7_SDMMC2=y