diff --git a/firmware/backlight.c b/firmware/backlight.c
index c5f75fb58c..b8becfa69f 100644
--- a/firmware/backlight.c
+++ b/firmware/backlight.c
@@ -860,6 +860,7 @@ void backlight_init(void)
 
 void backlight_on(void) {}
 void backlight_off(void) {}
+void buttonlight_on(void) {}
 void backlight_set_timeout(int value) {(void)value;}
 
 bool is_backlight_on(bool ignore_always_off)