diff --git a/backend/core-service/scripts/seed_commercial_runtime.py b/backend/core-service/scripts/seed_commercial_runtime.py
index ebe553e..06dee42 100644
--- a/backend/core-service/scripts/seed_commercial_runtime.py
+++ b/backend/core-service/scripts/seed_commercial_runtime.py
@@ -10,9 +10,11 @@ import yaml
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
 
-# Allow running from repo root or core-service dir
-ROOT = Path(__file__).resolve().parents[3]
-sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
+# Allow running from the repo checkout or from the mounted /app directory in Docker.
+SCRIPT_PATH = Path(__file__).resolve()
+CORE_SERVICE_ROOT = SCRIPT_PATH.parents[1]
+ROOT = next((parent for parent in SCRIPT_PATH.parents if (parent / "docs").exists()), CORE_SERVICE_ROOT)
+sys.path.insert(0, str(CORE_SERVICE_ROOT))
 
 from app.commercial.kinds import BUILTIN_REGISTRY_KINDS
 from app.commercial.service import CommercialRegistryService