diff --git a/tests/test_module_load.py b/tests/test_module_load.py
index 2a60864b54..15017db5b0 100644
--- a/tests/test_module_load.py
+++ b/tests/test_module_load.py
@@ -5,8 +5,9 @@
 class TestModule:
     static_variable = 123
 
-    def __init__(self):
-        self.instance_variable = 321
+    @classmethod
+    def setup_class(cls):
+        cls.instance_variable = 321
 
     def post_config_hook(self):
         pass