diff --git a/src/wp-admin/includes/file.php b/src/wp-admin/includes/file.php
index 6ef2aed553..306da79ed0 100644
--- a/src/wp-admin/includes/file.php
+++ b/src/wp-admin/includes/file.php
@@ -98,11 +98,17 @@ function get_file_description( $file ) {
 }
 
 /**
- * Gets the absolute filesystem path to the root of the WordPress installation.
+ * Gets the absolute filesystem path to the root of the WordPress site.
+ *
+ * Returns the filesystem path to the home page of the WordPress site. For
+ * WordPress sites with WordPress running in its own directory, this does
+ * not match ABSPATH but rather the path for home_url().
+ *
+ * @link https://wordpress.org/documentation/article/giving-wordpress-its-own-directory/
  *
  * @since 1.5.0
  *
- * @return string Full filesystem path to the root of the WordPress installation.
+ * @return string Full filesystem path to the root of the WordPress site.
  */
 function get_home_path() {
 	$home    = set_url_scheme( get_option( 'home' ), 'http' );