diff --git a/module_build_service/config.py b/module_build_service/config.py
index 38c2b6cd..24d10e58 100644
--- a/module_build_service/config.py
+++ b/module_build_service/config.py
@@ -72,7 +72,7 @@ def init_config(app):
         if 'MBS_CONFIG_SECTION' in app.request.environ:
             config_section = app.request.environ['MBS_CONFIG_SECTION']
     # TestConfiguration shall only be used for running tests, otherwise...
-    if any(['nosetests' in arg or 'noserunner.py' in arg or 'py.test' in arg or 'pytest.py' in arg for arg in sys.argv]):
+    if any(['nosetests' in arg or 'noserunner.py' in arg or 'py.test' in arg or 'pytest' in arg for arg in sys.argv]):
         config_section = 'TestConfiguration'
         from conf import config
         config_module = config