diff --git a/quic/qbone/platform/netlink_test.cc b/quic/qbone/platform/netlink_test.cc
index 04ce68c..d6a4adf 100644
--- a/quic/qbone/platform/netlink_test.cc
+++ b/quic/qbone/platform/netlink_test.cc
@@ -194,8 +194,8 @@
       family = AF_INET6;
       break;
     default:
-      QUIC_BUG << absl::StrCat("unexpected address family: ",
-                               ip.address_family());
+      QUIC_BUG << quiche::QuicheStrCat("unexpected address family: ",
+                                       ip.address_family());
       family = AF_UNSPEC;
   }
   auto* msg = reinterpret_cast<struct ifaddrmsg*>(NLMSG_DATA(nlm));
diff --git a/quic/qbone/qbone_server_session.cc b/quic/qbone/qbone_server_session.cc
index c5456bf..6c5697b 100644
--- a/quic/qbone/qbone_server_session.cc
+++ b/quic/qbone/qbone_server_session.cc
@@ -20,7 +20,7 @@
     const QuicSocketAddress& peer_address,
     const QuicSocketAddress& self_address,
     string* error_details) const {
-  absl::string_view alpn;
+  quiche::QuicheStringPiece alpn;
   chlo.GetStringPiece(quic::kALPN, &alpn);
   if (alpn != QboneConstants::kQboneAlpn) {
     *error_details = "ALPN-indicated protocol is not qbone";