diff --git a/pyproject.toml b/pyproject.toml
index 1cde2b69..23cf4c82 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -96,6 +96,7 @@ relative_files = true
 [tool.pytest.ini_options]
 minversion = "6.0"
 testpaths = [
+    "deltametrics/cube.py",
     "tests",
 ]
 norecursedirs = [