diff --git a/libraries/AP_Motors/AP_Motors_Class.cpp b/libraries/AP_Motors/AP_Motors_Class.cpp
index e270c52fa1..7ecb4fea0c 100644
--- a/libraries/AP_Motors/AP_Motors_Class.cpp
+++ b/libraries/AP_Motors/AP_Motors_Class.cpp
@@ -84,7 +84,7 @@ void AP_Motors::Init()
 void AP_Motors::armed(bool arm)
 {
     _armed = arm;
-    notify.flags.armed = _armed;
+    AP_Notify::flags.armed = _armed;
 };
 
 // set_min_throttle - sets the minimum throttle that will be sent to the engines when they're not off (i.e. to prevents issues with some motors spinning and some not at very low throttle)