diff --git a/CRM/Utils/QueryFormatter.php b/CRM/Utils/QueryFormatter.php
index d54cc0e78236..e11fdced70ce 100644
--- a/CRM/Utils/QueryFormatter.php
+++ b/CRM/Utils/QueryFormatter.php
@@ -219,7 +219,7 @@ public function formatSql($table, $columns, $queryText) {
    * Format Fts.
    *
    * @param string $text
-   * @param $mode
+   * @param string $mode
    *
    * @return mixed
    */
@@ -270,7 +270,7 @@ protected function _formatFts($text, $mode) {
    * Format FTS.
    *
    * @param string $text
-   * @param $mode
+   * @param string $mode
    *
    * @return mixed
    */
@@ -342,8 +342,8 @@ protected function _formatFtsBool($text, $mode) {
   /**
    * Format like.
    *
-   * @param $text
-   * @param $mode
+   * @param string $text
+   * @param string $mode
    *
    * @return mixed
    */
@@ -425,9 +425,9 @@ protected function parseWords($text, $quotes) {
   }
 
   /**
-   * @param $text
-   * @param $wildcard
-   * @return mixed
+   * @param string|null $text
+   * @param string $wildcard
+   * @return string|null
    */
   protected function dedupeWildcards($text, $wildcard) {
     if ($text === NULL) {
@@ -471,7 +471,7 @@ public static function getLanguages() {
   }
 
   /**
-   * @param $text
+   * @param string $text
    *
    * Ex: drush eval 'civicrm_initialize(); CRM_Utils_QueryFormatter::dumpExampleTable("firstword secondword");'
    */