diff --git a/services/web/server/tests/unit/isolated/test_tracing.py b/services/web/server/tests/unit/isolated/test_tracing.py
index 0b5069c7fe1..7d302d308be 100644
--- a/services/web/server/tests/unit/isolated/test_tracing.py
+++ b/services/web/server/tests/unit/isolated/test_tracing.py
@@ -17,16 +17,18 @@
 def mock_webserver_service_environment(
     monkeypatch: pytest.MonkeyPatch, mock_webserver_service_environment: EnvVarsDict
 ) -> EnvVarsDict:
-
-    return mock_webserver_service_environment | setenvs_from_dict(
+    envs = mock_webserver_service_environment | setenvs_from_dict(
         monkeypatch,
         {
-            "WEBSERVER_TRACING": "{}",
             "TRACING_OPENTELEMETRY_COLLECTOR_ENDPOINT": "http://opentelemetry-collector",
             "TRACING_OPENTELEMETRY_COLLECTOR_PORT": "4318",
         },
     )
 
+    envs.pop("WEBSERVER_TRACING")
+
+    return envs
+
 
 def test_middleware_restrictions_opentelemetry_is_second_middleware(
     mock_webserver_service_environment: EnvVarsDict,