diff --git a/platformio/public.py b/platformio/public.py
index 0c22b3b9..49db1b54 100644
--- a/platformio/public.py
+++ b/platformio/public.py
@@ -20,6 +20,7 @@ from platformio.fs import to_unix_path
 from platformio.platform.base import PlatformBase
 from platformio.project.config import ProjectConfig
 from platformio.project.helpers import get_project_watch_lib_dirs, load_build_metadata
+from platformio.project.options import get_config_options_schema
 from platformio.test.result import TestCase, TestCaseSource, TestStatus
 from platformio.test.runners.base import TestRunnerBase
 from platformio.test.runners.doctest import DoctestTestCaseParser