diff --git a/externs/shaka/manifest.js b/externs/shaka/manifest.js
index b94f3af7c1..e165893ea7 100644
--- a/externs/shaka/manifest.js
+++ b/externs/shaka/manifest.js
@@ -357,7 +357,7 @@ shakaExtern.GetSegmentReferenceFunction;
  *   The stream's height in pixels.
  * @property {(string|undefined)} kind
  *   <i>Text streams only.</i> <br>
- *   The kind of text stream.  For example, 'captions' or 'subtitles'.
+ *   The kind of text stream.  For example, 'caption' or 'subtitle'.
  *   @see https://goo.gl/k1HWA6
  * @property {boolean} encrypted
  *   <i>Defaults to false.</i><br>
diff --git a/externs/shaka/player.js b/externs/shaka/player.js
index 2c2123c7a2..df0a3597f7 100644
--- a/externs/shaka/player.js
+++ b/externs/shaka/player.js
@@ -162,8 +162,8 @@ shakaExtern.Stats;
  *   The language of the track, or 'und' if not given.  This is the exact
  *   value provided in the manifest; it may need to be normalized.
  * @property {?string} kind
- *   (only for text tracks) The kind of text track, either 'captions' or
- *   'subtitles'.
+ *   (only for text tracks) The kind of text track, either 'caption' or
+ *   'subtitle'.
  * @property {?number} width
  *   The video width provided in the manifest, if present.
  * @property {?number} height