diff --git a/libraries/AC_AttitudeControl/AC_PosControl.cpp b/libraries/AC_AttitudeControl/AC_PosControl.cpp
index 668517e647..555b580266 100644
--- a/libraries/AC_AttitudeControl/AC_PosControl.cpp
+++ b/libraries/AC_AttitudeControl/AC_PosControl.cpp
@@ -827,7 +827,6 @@ float AC_PosControl::time_since_last_xy_update() const
     return (now_us - _last_update_xy_us) * 1.0e-6f;
 }
 
-// write log to dataflash
 void AC_PosControl::write_log()
 {
     const Vector3f &pos_target = get_pos_target();
diff --git a/libraries/AC_AttitudeControl/AC_PosControl.h b/libraries/AC_AttitudeControl/AC_PosControl.h
index de3fada0ee..9b7060f327 100644
--- a/libraries/AC_AttitudeControl/AC_PosControl.h
+++ b/libraries/AC_AttitudeControl/AC_PosControl.h
@@ -291,7 +291,6 @@ public:
     // time_since_last_xy_update - returns time in seconds since the horizontal position controller was last run
     float time_since_last_xy_update() const;
 
-    // write log to dataflash
     void write_log();
 
     // provide feedback on whether arming would be a good idea right now: