diff --git a/setup.cfg b/setup.cfg
index 901b485..e3fc537 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -21,7 +21,7 @@ all_files = 1
 [upload_sphinx]
 upload-dir = docs/_build/html
 
-[pytest]
+[tool:pytest]
 DJANGO_SETTINGS_MODULE = nsupdate.settings.dev
 pep8maxlinelength = 120
 norecursedirs = .git