diff --git a/quic/core/quic_connection.cc b/quic/core/quic_connection.cc
index ee706e5..d6d07c1 100644
--- a/quic/core/quic_connection.cc
+++ b/quic/core/quic_connection.cc
@@ -1826,7 +1826,10 @@
                       << connection_id() << ", with error: "
                       << QuicErrorCodeToString(frame.quic_error_code) << " ("
                       << frame.error_details << ")"
-                      << ", transport error code: " << frame.wire_error_code
+                      << ", transport error code: "
+                      << QuicIetfTransportErrorCodeString(
+                             static_cast<QuicIetfTransportErrorCodes>(
+                                 frame.wire_error_code))
                       << ", error frame type: "
                       << frame.transport_close_frame_type;
       break;
diff --git a/quic/core/quic_error_codes.cc b/quic/core/quic_error_codes.cc
index af5525d..74922c3 100644
--- a/quic/core/quic_error_codes.cc
+++ b/quic/core/quic_error_codes.cc
@@ -291,9 +291,6 @@
 }
 
 std::string QuicIetfTransportErrorCodeString(QuicIetfTransportErrorCodes c) {
-  if (static_cast<uint64_t>(c) >= 0xff00u) {
-    return absl::StrCat("Private(", static_cast<uint64_t>(c), ")");
-  }
   if (c >= CRYPTO_ERROR_FIRST && c <= CRYPTO_ERROR_LAST) {
     const int tls_error = static_cast<int>(c - CRYPTO_ERROR_FIRST);
     const char* tls_error_description = SSL_alert_desc_string_long(tls_error);
diff --git a/quic/core/quic_error_codes_test.cc b/quic/core/quic_error_codes_test.cc
index f72c150..4c5517f 100644
--- a/quic/core/quic_error_codes_test.cc
+++ b/quic/core/quic_error_codes_test.cc
@@ -20,10 +20,6 @@
 }
 
 TEST_F(QuicErrorCodesTest, QuicIetfTransportErrorCodeString) {
-  EXPECT_EQ("Private(65280)",
-            QuicIetfTransportErrorCodeString(
-                static_cast<quic::QuicIetfTransportErrorCodes>(0xff00u)));
-
   EXPECT_EQ("CRYPTO_ERROR(missing extension)",
             QuicIetfTransportErrorCodeString(
                 static_cast<quic::QuicIetfTransportErrorCodes>(