diff --git a/src/Bundle/ChillMainBundle/Search/AbstractSearch.php b/src/Bundle/ChillMainBundle/Search/AbstractSearch.php
index 9c3f96f5d..a7cb88d55 100644
--- a/src/Bundle/ChillMainBundle/Search/AbstractSearch.php
+++ b/src/Bundle/ChillMainBundle/Search/AbstractSearch.php
@@ -24,13 +24,11 @@ abstract class AbstractSearch implements SearchInterface
     /**
      * parse string expected to be a date and transform to a DateTime object.
      *
-     * @param type $string
-     *
      * @return \DateTime
      *
      * @throws ParsingException if the  date is not parseable
      */
-    public function parseDate($string)
+    public function parseDate(string $string)
     {
         try {
             return new \DateTime($string);