diff --git a/libraries/AC_Avoidance/AP_OABendyRuler.cpp b/libraries/AC_Avoidance/AP_OABendyRuler.cpp
index 673dd55276..de7f42fce2 100644
--- a/libraries/AC_Avoidance/AP_OABendyRuler.cpp
+++ b/libraries/AC_Avoidance/AP_OABendyRuler.cpp
@@ -78,8 +78,8 @@ AP_OABendyRuler::AP_OABendyRuler()
     _bearing_prev = FLT_MAX;
 }
 
-// run background task to find best path and update avoidance_results
-// returns true and updates origin_new and destination_new if a best path has been found
+// run background task to find best path
+// returns true and updates origin_new and destination_new if a best path has been found.  returns false if OA is not required
 // bendy_type is set to the type of BendyRuler used
 bool AP_OABendyRuler::update(const Location& current_loc, const Location& destination, const Vector2f &ground_speed_vec, Location &origin_new, Location &destination_new, OABendyType &bendy_type, bool proximity_only)
 {
diff --git a/libraries/AC_Avoidance/AP_OABendyRuler.h b/libraries/AC_Avoidance/AP_OABendyRuler.h
index e282e64722..1b480bdbcf 100644
--- a/libraries/AC_Avoidance/AP_OABendyRuler.h
+++ b/libraries/AC_Avoidance/AP_OABendyRuler.h
@@ -22,8 +22,9 @@ public:
         OA_BENDY_VERTICAL   = 2,
     };
 
-    // run background task to find best path and update avoidance_results
-    // returns true and populates origin_new and destination_new if OA is required.  returns false if OA is not required
+    // run background task to find best path
+    // returns true and updates origin_new and destination_new if a best path has been found.  returns false if OA is not required
+    // bendy_type is set to the type of BendyRuler used
     bool update(const Location& current_loc, const Location& destination, const Vector2f &ground_speed_vec, Location &origin_new, Location &destination_new, OABendyType &bendy_type, bool proximity_only);
 
     static const struct AP_Param::GroupInfo var_info[];