diff --git a/tests/Common/AbstractMigrationBuilderTest.php b/tests/Common/AbstractMigrationBuilderTest.php
index 676226c7..a5b7c08f 100644
--- a/tests/Common/AbstractMigrationBuilderTest.php
+++ b/tests/Common/AbstractMigrationBuilderTest.php
@@ -18,7 +18,7 @@ abstract class AbstractMigrationBuilderTest extends TestCase
 
     protected ContainerInterface $container;
     protected MigrationBuilder $builder;
-    private ConnectionInterface $db;
+    protected ConnectionInterface $db;
     private StubMigrationInformer $informer;
 
     protected function setUp(): void