diff --git a/libraries/AC_AttitudeControl/AC_AttitudeControl.h b/libraries/AC_AttitudeControl/AC_AttitudeControl.h
index 6a3d3d5cff..4c4552fa92 100644
--- a/libraries/AC_AttitudeControl/AC_AttitudeControl.h
+++ b/libraries/AC_AttitudeControl/AC_AttitudeControl.h
@@ -476,6 +476,3 @@ public:
     float control_monitor_rms_output_pitch(void) const;
     float control_monitor_rms_output_yaw(void) const;
 };
-
-#define AC_ATTITUDE_CONTROL_LOG_FORMAT(msg) { msg, sizeof(AC_AttitudeControl::log_Attitude),	\
-                            "ATT", "cccccCC",      "RollIn,Roll,PitchIn,Pitch,YawIn,Yaw,NavYaw" }