diff --git a/tests/test_e2e_v27.py b/tests/test_e2e_v27.py
index 58804d6..5270adb 100644
--- a/tests/test_e2e_v27.py
+++ b/tests/test_e2e_v27.py
@@ -29,6 +29,7 @@ from src.blackboard.registry import ProjectRegistry
 from src.daemon.ticker import Ticker
 from src.utils import get_data_root
 
+DATA_ROOT = get_data_root()
 
 # ── Fixtures ──