diff --git a/arch/arm/soc/nordic_nrf5/nrf51/Kconfig.series b/arch/arm/soc/nordic_nrf5/nrf51/Kconfig.series
index c601c434ea6..b318cb88ed6 100644
--- a/arch/arm/soc/nordic_nrf5/nrf51/Kconfig.series
+++ b/arch/arm/soc/nordic_nrf5/nrf51/Kconfig.series
@@ -25,4 +25,4 @@ config  SOC_SERIES_NRF51X
 	select HAS_CMSIS
 	select HAS_NORDIC_MDK
 	help
-	 Enable support for NRF51 MCU series
+	  Enable support for NRF51 MCU series