diff --git a/DataStorage/Database/DataMapperAbstract.php b/DataStorage/Database/DataMapperAbstract.php
index 6d60fe61b..def5d0ea3 100644
--- a/DataStorage/Database/DataMapperAbstract.php
+++ b/DataStorage/Database/DataMapperAbstract.php
@@ -571,8 +571,8 @@ class DataMapperAbstract implements DataMapperInterface
         try {
             self::$db->con->prepare($query->toSql())->execute();
         } catch (\Throwable $t) {
-            var_dump($t->getMessage());
-            var_dump($query->toSql());
+            \var_dump($t->getMessage());
+            \var_dump($query->toSql());
             return -1;
         }