diff --git a/api/ble.py b/api/ble.py
index a35d8d2..9b1ebdb 100644
--- a/api/ble.py
+++ b/api/ble.py
@@ -289,6 +289,7 @@ def test(test_count = 0, bt_usb_id = None) -> None:
     log.info("Starting BLE test...")
     log.info(f"  Scanning MACs: {mac_list}")
     test_list = mac_list
+    passed_list = []
     # History buffer - keep the last N snapshots (N=5)
     print("Creating history variable")
     from collections import deque