diff --git a/src/net/http/transport_test.go b/src/net/http/transport_test.go
index 9892fcaae5..2fc18c5903 100644
--- a/src/net/http/transport_test.go
+++ b/src/net/http/transport_test.go
@@ -3278,6 +3278,7 @@ func testTransportLimits1xxResponses(t *testing.T, mode testMode) {
 	for _, want := range []string{
 		"response headers exceeded",
 		"too many 1xx",
+		"header list too large",
 	} {
 		if strings.Contains(err.Error(), want) {
 			return