diff --git a/quic/test_tools/crypto_test_utils.cc b/quic/test_tools/crypto_test_utils.cc
index e2dc56c..732399c 100644
--- a/quic/test_tools/crypto_test_utils.cc
+++ b/quic/test_tools/crypto_test_utils.cc
@@ -209,8 +209,8 @@
 
 }  // namespace
 
-QuicCryptoServerConfig CryptoServerConfigForTesting() {
-  return QuicCryptoServerConfig(
+std::unique_ptr<QuicCryptoServerConfig> CryptoServerConfigForTesting() {
+  return std::make_unique<QuicCryptoServerConfig>(
       QuicCryptoServerConfig::TESTING, QuicRandom::GetInstance(),
       ProofSourceForTesting(), KeyExchangeSource::Default());
 }