diff --git a/templates/test/cpp/naming/resolver_component_tests_defs.include b/templates/test/cpp/naming/resolver_component_tests_defs.include
index d38316cbe68..8be5ba21bbd 100644
--- a/templates/test/cpp/naming/resolver_component_tests_defs.include
+++ b/templates/test/cpp/naming/resolver_component_tests_defs.include
@@ -55,7 +55,7 @@ if cur_resolver and cur_resolver != 'ares':
       'needs to use GRPC_DNS_RESOLVER=ares.'))
   test_runner_log('Exit 1 without running tests.')
   sys.exit(1)
-os.environ.update({'GRPC_TRACE': 'cares_resolver'})
+os.environ.update({'GRPC_TRACE': 'cares_resolver,cares_address_sorting'})
 
 def wait_until_dns_server_is_up(args,
                                 dns_server_subprocess,