diff --git a/tests/wpt/servowpt.py b/tests/wpt/servowpt.py
index b74029ac346..bc4bceca575 100644
--- a/tests/wpt/servowpt.py
+++ b/tests/wpt/servowpt.py
@@ -226,7 +226,7 @@ class TrackerDashboardFilter():
         self.headers = {
             "Content-Type": "application/json"
         }
-        if TRACKER_DASHBOARD_SECRET_ENV_VAR in os.environ:
+        if TRACKER_DASHBOARD_SECRET_ENV_VAR in os.environ and os.environ[TRACKER_DASHBOARD_SECRET_ENV_VAR]:
             self.url = f"{base_url}/dashboard/attempts"
             secret = os.environ[TRACKER_DASHBOARD_SECRET_ENV_VAR]
             self.headers["Authorization"] = f"Bearer {secret}"