diff --git a/quic/platform/api/quic_default_proof_providers.h b/quic/platform/api/quic_default_proof_providers.h
index 6f3b636..9890709 100644
--- a/quic/platform/api/quic_default_proof_providers.h
+++ b/quic/platform/api/quic_default_proof_providers.h
@@ -13,11 +13,12 @@
 
 namespace quic {
 
-// Provides a default proof verifier.  The verifier has to do a good faith
-// attempt at verifying the certificate against a reasonable root store, and not
-// just always return success.
-inline std::unique_ptr<ProofVerifier> CreateDefaultProofVerifier() {
-  return CreateDefaultProofVerifierImpl();
+// Provides a default proof verifier that can verify a cert chain for |host|.
+// The verifier has to do a good faith attempt at verifying the certificate
+// against a reasonable root store, and not just always return success.
+inline std::unique_ptr<ProofVerifier> CreateDefaultProofVerifier(
+    const std::string& host) {
+  return CreateDefaultProofVerifierImpl(host);
 }
 
 // Provides a default proof source for CLI-based tools.  The actual certificates
diff --git a/quic/tools/quic_toy_client.cc b/quic/tools/quic_toy_client.cc
index 319d3a2..ed05600 100644
--- a/quic/tools/quic_toy_client.cc
+++ b/quic/tools/quic_toy_client.cc
@@ -216,7 +216,7 @@
   if (GetQuicFlag(FLAGS_disable_certificate_verification)) {
     proof_verifier = quic::QuicMakeUnique<FakeProofVerifier>();
   } else {
-    proof_verifier = quic::CreateDefaultProofVerifier();
+    proof_verifier = quic::CreateDefaultProofVerifier(url.host());
   }
 
   // Build the client, and try to connect.