diff --git a/ArduCopter/GCS_Mavlink.cpp b/ArduCopter/GCS_Mavlink.cpp
index 28aebf0511093..0ec206e53e62b 100644
--- a/ArduCopter/GCS_Mavlink.cpp
+++ b/ArduCopter/GCS_Mavlink.cpp
@@ -525,6 +525,7 @@ static const ap_message STREAM_RC_CHANNELS_msgs[] = {
 };
 static const ap_message STREAM_EXTRA1_msgs[] = {
     MSG_ATTITUDE,
+    MSG_ATTITUDE_TARGET,
     MSG_SIMSTATE,
     MSG_AHRS2,
     MSG_PID_TUNING // Up to four PID_TUNING messages are sent, depending on GCS_PID_MASK parameter