diff --git a/environments/math_python/pyproject.toml b/environments/math_python/pyproject.toml
index 51cb7de92..de68eeecf 100644
--- a/environments/math_python/pyproject.toml
+++ b/environments/math_python/pyproject.toml
@@ -12,3 +12,10 @@ dependencies = [
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"
+
+[tool.hatch.build]
+include = ["math_python.py"]
+
+[tool.verifiers.eval]
+num_examples = 20
+rollouts_per_example = 1