diff --git a/quic/platform/api/quic_socket_address.h b/quic/platform/api/quic_socket_address.h
index 1a200e1..c91b1f2 100644
--- a/quic/platform/api/quic_socket_address.h
+++ b/quic/platform/api/quic_socket_address.h
@@ -42,6 +42,12 @@
   uint16_t port_ = 0;
 };
 
+inline std::ostream& operator<<(std::ostream& os,
+                                const QuicSocketAddress address) {
+  os << address.ToString();
+  return os;
+}
+
 }  // namespace quic
 
 #endif  // QUICHE_QUIC_PLATFORM_API_QUIC_SOCKET_ADDRESS_H_