diff --git a/pyproject.toml b/pyproject.toml
index 398e176..6eb3277 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -150,6 +150,7 @@ aprsd = "aprsd.main:main"
 # installed, specify them here.
 py-modules = ["aprsd"]
 package-data = {"sample" = ["*.dat"]}
+packages = ["aprsd"]
 
 [build-system]
 requires = [