diff --git a/boards/arm/stm32/nucleo-g431rb/configs/nsh/defconfig b/boards/arm/stm32/nucleo-g431rb/configs/nsh/defconfig
index 427603d47d6..f5e9e2a3be1 100644
--- a/boards/arm/stm32/nucleo-g431rb/configs/nsh/defconfig
+++ b/boards/arm/stm32/nucleo-g431rb/configs/nsh/defconfig
@@ -11,7 +11,6 @@
 # CONFIG_NSH_CMDPARMS is not set
 # CONFIG_NSH_DISABLE_IFCONFIG is not set
 # CONFIG_NSH_DISABLE_PS is not set
-# CONFIG_STM32_FLASH_PREFETCH is not set
 CONFIG_ARCH="arm"
 CONFIG_ARCH_BOARD="nucleo-g431rb"
 CONFIG_ARCH_BOARD_NUCLEO_G431RB=y