diff --git a/includes/CommentParser.php b/includes/CommentParser.php
index 9ed88690e..b7be3f8ff 100644
--- a/includes/CommentParser.php
+++ b/includes/CommentParser.php
@@ -270,7 +270,7 @@ class CommentParser {
 	 * of matching the regexp returned by getTimestampRegexp()
 	 *
 	 * @param string $format Date format, as used by MediaWiki
-	 * @param array|null $digits Localised digits from 0 to 9, e.g. `[ '0', '1', ..., '9' ]`
+	 * @param string[]|null $digits Localised digits from 0 to 9, e.g. `[ '0', '1', ..., '9' ]`
 	 * @param string $localTimezone Local timezone IANA name, e.g. `America/New_York`
 	 * @param array $tzAbbrs Map of localised timezone abbreviations to IANA abbreviations
 	 *   for the local timezone, e.g. [ 'EDT' => 'EDT', 'EST' => 'EST' ]
diff --git a/modules/Parser.js b/modules/Parser.js
index b76b1a72b..99af45036 100644
--- a/modules/Parser.js
+++ b/modules/Parser.js
@@ -187,7 +187,7 @@ Parser.prototype.getTimestampRegexp = function ( format, digitsRegexp, tzAbbrs )
  *
  * @private
  * @param {string} format Date format, as used by MediaWiki
- * @param {array|null} digits Localised digits from 0 to 9, e.g. `[ '0', '1', ..., '9' ]`
+ * @param {string[]|null} digits Localised digits from 0 to 9, e.g. `[ '0', '1', ..., '9' ]`
  * @param {string} localTimezone Local timezone IANA name, e.g. `America/New_York`
  * @param {Object} tzAbbrs Map of localised timezone abbreviations to IANA abbreviations
  *   for the local timezone, e.g. `{EDT: "EDT", EST: "EST"}`