diff --git a/src/extensions/scratch3_video_sensing/library.js b/src/extensions/scratch3_video_sensing/library.js
index 0f3c24f7d..5a6ac344e 100644
--- a/src/extensions/scratch3_video_sensing/library.js
+++ b/src/extensions/scratch3_video_sensing/library.js
@@ -290,7 +290,7 @@ class VideoMotion {
             } = this;
 
             // The public APIs for Renderer#isTouching manage keeping the matrix and
-            // silhouette up-to-date, which is needed for drawable#isTouching to work
+            // silhouette up-to-date, which is needed for drawable#isTouching to work (used below)
             drawable.updateMatrix();
             if (drawable.skin) drawable.skin.updateSilhouette();