diff --git a/test/cpp/interop/xds_interop_client.cc b/test/cpp/interop/xds_interop_client.cc
index b46926e517a..a896e07b5c7 100644
--- a/test/cpp/interop/xds_interop_client.cc
+++ b/test/cpp/interop/xds_interop_client.cc
@@ -403,7 +403,7 @@ void EnableCsmObservability() {
   auto meter_provider =
       std::make_shared<opentelemetry::sdk::metrics::MeterProvider>();
   meter_provider->AddMetricReader(std::move(prometheus_exporter));
-  grpc::experimental::OpenTelemetryPluginBuilder()
+  grpc::OpenTelemetryPluginBuilder()
       .AddPluginOption(grpc::experimental::MakeCsmOpenTelemetryPluginOption())
       .SetMeterProvider(std::move(meter_provider))
       .BuildAndRegisterGlobal();
diff --git a/test/cpp/interop/xds_interop_server.cc b/test/cpp/interop/xds_interop_server.cc
index 0cab7527b52..cba981621fc 100644
--- a/test/cpp/interop/xds_interop_server.cc
+++ b/test/cpp/interop/xds_interop_server.cc
@@ -54,7 +54,7 @@ void EnableCsmObservability() {
   auto meter_provider =
       std::make_shared<opentelemetry::sdk::metrics::MeterProvider>();
   meter_provider->AddMetricReader(std::move(prometheus_exporter));
-  grpc::experimental::OpenTelemetryPluginBuilder()
+  grpc::OpenTelemetryPluginBuilder()
       .AddPluginOption(grpc::experimental::MakeCsmOpenTelemetryPluginOption())
       .SetMeterProvider(std::move(meter_provider))
       .BuildAndRegisterGlobal();