diff --git a/infra/conf/dns_test.go b/infra/conf/dns_test.go
index 5d423884..3329f5a2 100644
--- a/infra/conf/dns_test.go
+++ b/infra/conf/dns_test.go
@@ -20,7 +20,7 @@ func TestDNSConfigParsing(t *testing.T) {
 			return config.Build()
 		}
 	}
-
+	expectedServeExpiredTTL := uint32(172800)
 	runMultiTestCase(t, []TestCase{
 		{
 			Input: `{
@@ -28,7 +28,9 @@ func TestDNSConfigParsing(t *testing.T) {
 					"address": "8.8.8.8",
 					"port": 5353,
 					"skipFallback": true,
-					"domains": ["domain:example.com"]
+					"domains": ["domain:example.com"],
+					"serveStale": true,
+					"serveExpiredTTL": 172800
 				}],
 				"hosts": {
 					"domain:example.com": "google.com",
@@ -40,6 +42,8 @@ func TestDNSConfigParsing(t *testing.T) {
 				"clientIp": "10.0.0.1",
 				"queryStrategy": "UseIPv4",
 				"disableCache": true,
+				"serveStale": false,
+				"serveExpiredTTL": 86400,
 				"disableFallback": true
 			}`,
 			Parser: parserCreator(),
@@ -68,6 +72,8 @@ func TestDNSConfigParsing(t *testing.T) {
 								Size: 1,
 							},
 						},
+						ServeStale:      true,
+						ServeExpiredTTL: &expectedServeExpiredTTL,
 					},
 				},
 				StaticHosts: []*dns.Config_HostMapping{
@@ -100,6 +106,8 @@ func TestDNSConfigParsing(t *testing.T) {
 				ClientIp:        []byte{10, 0, 0, 1},
 				QueryStrategy:   dns.QueryStrategy_USE_IP4,
 				DisableCache:    true,
+				ServeStale:      false,
+				ServeExpiredTTL: 86400,
 				DisableFallback: true,
 			},
 		},