diff --git a/pyproject.toml b/pyproject.toml
index 2f06a56..407b82f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,6 +25,9 @@ Source = "https://github.com/lemma-osu/scikit-learn-knn"
 [tool.hatch.version]
 path = "src/sklearn_knn/__about__.py"
 
+[tool.hatch.build.targets.wheel]
+packages = ["src/sklearn_knn"]
+
 [tool.hatch.build.targets.sdist]
 include = [
     "/src",