diff --git a/configs/stm32mp15_basic_defconfig b/configs/stm32mp15_basic_defconfig
index 195efa1..b1c3690 100644
--- a/configs/stm32mp15_basic_defconfig
+++ b/configs/stm32mp15_basic_defconfig
@@ -36,6 +36,7 @@
 CONFIG_PMIC_STPMU1=y
 CONFIG_DM_REGULATOR=y
 CONFIG_DM_REGULATOR_GPIO=y
+CONFIG_DM_REGULATOR_STM32_VREFBUF=y
 CONFIG_DM_REGULATOR_STPMU1=y
 CONFIG_STM32_SERIAL=y
 # CONFIG_EFI_LOADER is not set