diff --git a/pyproject.toml b/pyproject.toml
index 8fe55c9..eb48198 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,3 +21,6 @@ jupyter = [
     "ipykernel",
     "ipywidgets",
 ]
+
+[tool.setuptools]
+py-modules = []