diff --git a/firmware/target/arm/tms320dm320/mrobe-500/backlight-mr500.c b/firmware/target/arm/tms320dm320/mrobe-500/backlight-mr500.c
index 1596b83dc3..413790ae00 100644
--- a/firmware/target/arm/tms320dm320/mrobe-500/backlight-mr500.c
+++ b/firmware/target/arm/tms320dm320/mrobe-500/backlight-mr500.c
@@ -39,7 +39,7 @@ void _backlight_on(void)
 {
     lcd_awake(); /* power on lcd + visible display */
 
-#if !defined(CONFIG_BACKLIGHT_FADING)
+#if (CONFIG_BACKLIGHT_FADING == BACKLIGHT_NO_FADING)
     _backlight_write_brightness(backlight_brightness);
 #endif
 }