diff --git a/src/wp-includes/l10n.php b/src/wp-includes/l10n.php
index 85a020d804..64c844a0fb 100644
--- a/src/wp-includes/l10n.php
+++ b/src/wp-includes/l10n.php
@@ -152,13 +152,15 @@ function translate_with_gettext_context( $text, $context, $domain = 'default' )
 }
 
 /**
- * Retrieve the translation of $text. If there is no translation,
- * or the text domain isn't loaded, the original text is returned.
+ * Retrieve the translation of $text.
+ *
+ * If there is no translation, or the text domain isn't loaded, the original text is returned.
  *
  * @since 2.1.0
  *
  * @param string $text   Text to translate.
  * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
+ *                       Default 'default'.
  * @return string Translated text.
  */
 function __( $text, $domain = 'default' ) {