diff --git a/src/Db/DbHelper.php b/src/Db/DbHelper.php
index 62630b4..1b156a7 100644
--- a/src/Db/DbHelper.php
+++ b/src/Db/DbHelper.php
@@ -49,7 +49,6 @@ class DbHelper
                     AND UserAccounts.UserAccountID = circulations.UserAccountID
                 ORDER BY author, title;";
 
-        $results = Connection::execute($sql);
         return array_map(function($row) {
             return array(
                 "NoticeNr" => $row['NoticeNr'],
@@ -57,6 +56,6 @@ class DbHelper
                 "titre" => $row['title'],
                 "lecteur" => $row['displayName']
             );
-        }, $results);
+        }, Connection::execute($sql));
     }
 }