diff --git a/src/wp-includes/class-wp-comment-query.php b/src/wp-includes/class-wp-comment-query.php
index 771123ff5a..bdb750c025 100644
--- a/src/wp-includes/class-wp-comment-query.php
+++ b/src/wp-includes/class-wp-comment-query.php
@@ -311,7 +311,7 @@ class WP_Comment_Query {
 	/**
 	 * Parse arguments passed to the comment query with default query parameters.
 	 *
-	 * @since  4.2.0 Extracted from WP_Comment_Query::query().
+	 * @since 4.2.0 Extracted from WP_Comment_Query::query().
 	 *
 	 * @access public
 	 *
@@ -323,6 +323,14 @@ class WP_Comment_Query {
 		}
 
 		$this->query_vars = wp_parse_args( $query, $this->query_var_defaults );
+
+		/**
+		 * Fires after the comment query vars have been parsed.
+		 *
+		 * @since 4.2.0
+		 *
+		 * @param WP_Comment_Query &$this The WP_Comment_Query instance (passed by reference).
+		 */
 		do_action_ref_array( 'parse_comment_query', array( &$this ) );
 	}