diff --git a/src/main/io/rc_controls.h b/src/main/io/rc_controls.h
index 4a442f18b1..8cdc3c7750 100644
--- a/src/main/io/rc_controls.h
+++ b/src/main/io/rc_controls.h
@@ -41,6 +41,7 @@ typedef enum {
     BOXGOV,
     BOXOSD,
     BOXTELEMETRY,
+    BOXGTUNE,
     BOXSONAR,
     BOXSERVO1,
     BOXSERVO2,