diff --git a/snok/templates/__shared/_pyproject_toml b/snok/templates/__shared/_pyproject_toml
index 20b2633..a3c3263 100644
--- a/snok/templates/__shared/_pyproject_toml
+++ b/snok/templates/__shared/_pyproject_toml
@@ -20,6 +20,13 @@ dev = [
     "snok",
 ]
 
+[tool.snok]
+sources = [
+    "{{ __template_name }}",
+    "tests",
+]
+
+
 [tool.setuptools.package-data]
 {{ __template_name }} = ["py.typed"]