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));