diff --git a/platforms/chibios/chibios_config.h b/platforms/chibios/chibios_config.h
index 9699337fd3..2d4cbf8e4a 100644
--- a/platforms/chibios/chibios_config.h
+++ b/platforms/chibios/chibios_config.h
@@ -35,9 +35,9 @@
 
 #    define BACKLIGHT_PAL_MODE (PAL_MODE_ALTERNATE_PWM | PAL_RP_PAD_DRIVE12 | PAL_RP_GPIO_OE)
 #    define BACKLIGHT_PWM_COUNTER_FREQUENCY 1000000
-#ifndef BACKLIGHT_PWM_PERIOD
-#    define BACKLIGHT_PWM_PERIOD BACKLIGHT_PWM_COUNTER_FREQUENCY / 2048
-#endif
+#    ifndef BACKLIGHT_PWM_PERIOD
+#        define BACKLIGHT_PWM_PERIOD BACKLIGHT_PWM_COUNTER_FREQUENCY / 2048
+#    endif
 
 #    define AUDIO_PWM_PAL_MODE (PAL_MODE_ALTERNATE_PWM | PAL_RP_PAD_DRIVE12 | PAL_RP_GPIO_OE)
 #    define AUDIO_PWM_COUNTER_FREQUENCY 500000