diff --git a/pyproject.toml b/pyproject.toml
index 251f94b..d7d7151 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,6 +12,9 @@ dependencies = [
 [project.scripts]
 ghrel = "src.cli:main"
 
+[tool.setuptools.packages.find]
+include = ["src*"]
+
 [project.optional-dependencies]
 test = [
     "pytest",