diff --git a/lib/extras.php b/lib/extras.php
index 5a941a7..4b3f5b7 100644
--- a/lib/extras.php
+++ b/lib/extras.php
@@ -228,7 +228,7 @@ add_filter( 'the_content', __NAMESPACE__ . '\\divWrapper' );
  * (which all derive from TSF's generated archive title list), hook the
  * archive-title-items filter and return the unprefixed title.
  *
- * @param array $items [title, prefix, title_without_prefix]
+ * @param array $items [title, prefix, title_without_prefix].
  * @return array The same items with the prefix removed from the title.
  */
 function stripArchiveTitleItemsPrefix( $items ) {