diff --git a/tests/pfcwd/conftest.py b/tests/pfcwd/conftest.py
index 08b5ee2f56e..c9067395e45 100644
--- a/tests/pfcwd/conftest.py
+++ b/tests/pfcwd/conftest.py
@@ -314,7 +314,7 @@ def set_pfc_timer_cisco_8000(duthost, asic_id, script, port):
         dst="/")
 
     asic_arg = ""
-    if asic_id:
+    if asic_id != "":
         asic_arg = f"-n asic{asic_id}"
     duthost.shell(f"show platform npu script {asic_arg} -s {script_name}")