diff --git a/config/boards/arm/hw75_keyboard/hw75_keyboard_defconfig b/config/boards/arm/hw75_keyboard/hw75_keyboard_defconfig
index 6d079e7f..316e8820 100644
--- a/config/boards/arm/hw75_keyboard/hw75_keyboard_defconfig
+++ b/config/boards/arm/hw75_keyboard/hw75_keyboard_defconfig
@@ -10,7 +10,7 @@ CONFIG_PINCTRL=y
 # RGB
 CONFIG_ZMK_RGB_UNDERGLOW_EXT_POWER=n
 CONFIG_ZMK_RGB_UNDERGLOW_AUTO_OFF_IDLE=y
-CONFIG_ZMK_RGB_UNDERGLOW_BRT_START=10
+CONFIG_ZMK_RGB_UNDERGLOW_BRT_MAX=15
 CONFIG_HW75_INDICATOR_BRIGHTNESS_ACTIVE=255
 CONFIG_HW75_INDICATOR_BRIGHTNESS_INACTIVE=10