diff --git a/mediapipe/tasks/cc/vision/face_detector/face_detector_graph.cc b/mediapipe/tasks/cc/vision/face_detector/face_detector_graph.cc
index 545bdb27..8d83ac2c 100644
--- a/mediapipe/tasks/cc/vision/face_detector/face_detector_graph.cc
+++ b/mediapipe/tasks/cc/vision/face_detector/face_detector_graph.cc
@@ -127,9 +127,9 @@ void ConfigureNonMaxSuppressionCalculator(
 
 void ConfigureDetectionsToRectsCalculator(
     mediapipe::DetectionsToRectsCalculatorOptions* options) {
-  // Left eye.
+  // Left eye from the observer’s point of view.
   options->set_rotation_vector_start_keypoint_index(0);
-  // Right ete.
+  // Right eye from the observer’s point of view.
   options->set_rotation_vector_end_keypoint_index(1);
   options->set_rotation_vector_target_angle_degrees(0);
 }