diff --git a/src/google/adk/cli/adk_web_server.py b/src/google/adk/cli/adk_web_server.py
index 1b422fe335..d6ed441655 100644
--- a/src/google/adk/cli/adk_web_server.py
+++ b/src/google/adk/cli/adk_web_server.py
@@ -294,11 +294,15 @@ def _setup_telemetry(
     )
   else:
     # Old logic - to be removed when above leaves experimental.
-    tracer_provider = TracerProvider()
+    tracer_provider = trace.get_tracer_provider()
+    is_proxy = isinstance(tracer_provider, trace.ProxyTracerProvider)
+    if is_proxy:
+      tracer_provider = TracerProvider()
     if internal_exporters is not None:
       for exporter in internal_exporters:
         tracer_provider.add_span_processor(exporter)
-    trace.set_tracer_provider(tracer_provider=tracer_provider)
+    if is_proxy:
+      trace.set_tracer_provider(tracer_provider=tracer_provider)
 
 
 def _otel_env_vars_enabled() -> bool: