diff --git a/test/integration/Adapter/Driver/Pdo/Mysql/AdapterTrait.php b/test/integration/Adapter/Driver/Pdo/Mysql/AdapterTrait.php
index 4efdad16..aaddffff 100644
--- a/test/integration/Adapter/Driver/Pdo/Mysql/AdapterTrait.php
+++ b/test/integration/Adapter/Driver/Pdo/Mysql/AdapterTrait.php
@@ -8,6 +8,11 @@
 
 trait AdapterTrait
 {
+    /**
+     * @var Adapter
+     */
+    protected $adapter;
+
     protected function setUp(): void
     {
         if (! getenv('TESTS_LAMINAS_DB_ADAPTER_DRIVER_MYSQL')) {