diff --git a/src/wp-includes/media.php b/src/wp-includes/media.php
index 1f7e7786c9..6835359058 100644
--- a/src/wp-includes/media.php
+++ b/src/wp-includes/media.php
@@ -290,7 +290,7 @@ function remove_image_size( $name ) {
  *
  * @param int        $width  Image width in pixels.
  * @param int        $height Image height in pixels.
- * @param bool|array $crop   Optional. Whether to crop images to specified height and width or resize.
+ * @param bool|array $crop   Optional. Whether to crop images to specified width and height or resize.
  *                           An array can specify positioning of the crop area. Default false.
  */
 function set_post_thumbnail_size( $width = 0, $height = 0, $crop = false ) {