diff --git a/tests/Russian/MiddleNamesDeclensionTest.php b/tests/Russian/MiddleNamesDeclensionTest.php
index 19e9310..26b18c9 100644
--- a/tests/Russian/MiddleNamesDeclensionTest.php
+++ b/tests/Russian/MiddleNamesDeclensionTest.php
@@ -1,4 +1,5 @@
 <?php
+namespace morhos\test\Russian;
 require __DIR__.'/../../vendor/autoload.php';
 
 use morphos\Russian\Cases;