diff --git a/app/library/Services.php b/app/library/Services.php
index 2dea742..13af5e6 100644
--- a/app/library/Services.php
+++ b/app/library/Services.php
@@ -110,7 +110,7 @@ class Services extends DiDefault
         $db = new $class($dbConfig);
 
         $eventsManager = new \Phalcon\Events\Manager();
-        $eventsManager->attach('db', function ($event, $connection) use ($di, $logger) {
+        $eventsManager->attach('db', function ($event, $connection) use ($logger) {
 
             if ($event->getType() == 'beforeQuery') {
                 $logger->log($connection->getRealSQLStatement(), Logger::INFO);