diff --git a/ArduCopter/APM_Config.h b/ArduCopter/APM_Config.h
index 618d905f63..0bf9042afe 100644
--- a/ArduCopter/APM_Config.h
+++ b/ArduCopter/APM_Config.h
@@ -40,6 +40,7 @@
 	CH7_AUTO_TRIM
 	CH7_ADC_FILTER (experimental)
 	CH7_SAVE_WP
+	CH7_MULTI_MODE
 	*/
 
 //#define TOY_EDF	ENABLED