diff --git a/tests/test_rag_phase4_final_verify.py b/tests/test_rag_phase4_final_verify.py
index 4d681796..20c0a52a 100644
--- a/tests/test_rag_phase4_final_verify.py
+++ b/tests/test_rag_phase4_final_verify.py
@@ -75,7 +75,7 @@ def test_phase4_final_verify(live_gui):
    if status == 'done':
     success = True
     break
-   if "error" in status.lower():
+   if status and "error" in status.lower():
     print(f"[VERIFY] Error detected: {status}")
     break
    time.sleep(0.5)