diff --git a/boards/px4/fmu-v5/nuttx-config/nsh/defconfig b/boards/px4/fmu-v5/nuttx-config/nsh/defconfig
index 202dcbbff1..e51a42601f 100644
--- a/boards/px4/fmu-v5/nuttx-config/nsh/defconfig
+++ b/boards/px4/fmu-v5/nuttx-config/nsh/defconfig
@@ -170,7 +170,7 @@ CONFIG_STM32F7_OTGFS=y
 CONFIG_STM32F7_PROGMEM=y
 CONFIG_STM32F7_PWR=y
 CONFIG_STM32F7_RTC=y
-CONFIG_STM32F7_RTC_HSECLOCK=y
+CONFIG_STM32F7_RTC_AUTO_LSECLOCK_START_DRV_CAPABILITY=y
 CONFIG_STM32F7_RTC_MAGIC_REG=1
 CONFIG_STM32F7_SAVE_CRASHDUMP=y
 CONFIG_STM32F7_SDMMC1=y