diff --git a/pyproject.toml b/pyproject.toml
index 7836e48d..168db0db 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,11 +35,18 @@ exclude = [
   '.env',
   '.venv',
   '.tox',
+  'build',
 ]
 
 [tool.mypy]
 check_untyped_defs = true
 ignore_missing_imports = true
 exclude = [
-    'test_structures'
-]
\ No newline at end of file
+    'test_structures',
+    'build',
+]
+
+[tool.pytest.ini_options]
+testpaths = [
+    "tests"
+]
diff --git a/tox.ini b/tox.ini
index 26876cae..9a3ca247 100644
--- a/tox.ini
+++ b/tox.ini
@@ -30,6 +30,8 @@ python =
 fail_on_no_env = True
 
 [testenv]
+package = wheel
+wheel_build_env = .pkg
 deps =
   django32: Django>=3.2,<3.3
   django40: Django>=4.0,<4.1
@@ -55,7 +57,7 @@ commands =
 changedir = {toxinidir}
 deps = isort
 commands =
-  isort --check-only --diff django_components
+  isort --check-only --diff src/django_components
 
 [testenv:coverage]
 changedir = {toxinidir}