diff --git a/src/net/lookup_test.go b/src/net/lookup_test.go
index 2eb5dec8e0..7ed5eed9dd 100644
--- a/src/net/lookup_test.go
+++ b/src/net/lookup_test.go
@@ -1425,7 +1425,7 @@ func testLookupNoData(t *testing.T, prefix string) {
 	for {
 		// Domain that doesn't have any A/AAAA RRs, but has different one (in this case a TXT),
 		// so that it returns an empty response without any error codes (NXDOMAIN).
-		_, err := LookupHost("_dmarc.google.com")
+		_, err := LookupHost("golang.rsc.io")
 		if err == nil {
 			t.Errorf("%v: unexpected success", prefix)
 			return