diff --git a/boards/arm/nrf52/arduino-nano-33ble-rev2/Kconfig b/boards/arm/nrf52/arduino-nano-33ble-rev2/Kconfig
index 3679ccb5b4..5ab354d571 100644
--- a/boards/arm/nrf52/arduino-nano-33ble-rev2/Kconfig
+++ b/boards/arm/nrf52/arduino-nano-33ble-rev2/Kconfig
@@ -5,8 +5,8 @@
 
 if ARCH_BOARD_ARDUINO_NANO_33BLE_REV2
 config ARDUINONANO33BLEREV2_ARDUINO_BOOTLOADER
-    bool "Use Arduino bootloader"
-    default y
-    ---help---
-        Use the Arduino bootloader to load the NuttX binary.
+	bool "Use Arduino bootloader"
+	default y
+	---help---
+		Use the Arduino bootloader to load the NuttX binary.
 endif
diff --git a/boards/arm/nrf52/arduino-nano-33ble/Kconfig b/boards/arm/nrf52/arduino-nano-33ble/Kconfig
index 11301fe216..4431b8fdb8 100644
--- a/boards/arm/nrf52/arduino-nano-33ble/Kconfig
+++ b/boards/arm/nrf52/arduino-nano-33ble/Kconfig
@@ -5,8 +5,8 @@
 
 if ARCH_BOARD_ARDUINO_NANO_33BLE
 config ARDUINONANO33BLE_ARDUINO_BOOTLOADER
-    bool "Use Arduino bootloader"
-    default y
-    ---help---
-        Use the Arduino bootloader to load the NuttX binary.
+	bool "Use Arduino bootloader"
+	default y
+	---help---
+		Use the Arduino bootloader to load the NuttX binary.
 endif