diff --git a/libraries/AP_Beacon/AP_Beacon_Backend.cpp b/libraries/AP_Beacon/AP_Beacon_Backend.cpp
index f0dd4191bd..66ec41c230 100644
--- a/libraries/AP_Beacon/AP_Beacon_Backend.cpp
+++ b/libraries/AP_Beacon/AP_Beacon_Backend.cpp
@@ -90,7 +90,7 @@ Vector3f AP_Beacon_Backend::correct_for_orient_yaw(const Vector3f &vector)
 
     // check for change in parameter value and update constants
     if (orient_yaw_deg != _frontend.orient_yaw) {
-        _frontend.orient_yaw = wrap_180(_frontend.orient_yaw.get());
+        _frontend.orient_yaw.set(wrap_180(_frontend.orient_yaw.get()));
 
         // calculate rotation constants
         orient_yaw_deg = _frontend.orient_yaw;