diff --git a/quic/qbone/bonnet/tun_device_packet_exchanger.cc b/quic/qbone/bonnet/tun_device_packet_exchanger.cc
index 4e7c93b..3ac9ae1 100644
--- a/quic/qbone/bonnet/tun_device_packet_exchanger.cc
+++ b/quic/qbone/bonnet/tun_device_packet_exchanger.cc
@@ -6,7 +6,7 @@
 
 #include <utility>
 
-#include "net/third_party/quiche/src/common/platform/api/quiche_str_cat.h"
+#include "absl/strings/str_cat.h"
 
 namespace quic {
 
@@ -29,8 +29,7 @@
                                            std::string* error) {
   *blocked = false;
   if (fd_ < 0) {
-    *error = quiche::QuicheStrCat("Invalid file descriptor of the TUN device: ",
-                                  fd_);
+    *error = absl::StrCat("Invalid file descriptor of the TUN device: ", fd_);
     stats_->OnWriteError(error);
     return false;
   }
@@ -41,8 +40,7 @@
       // The tunnel is blocked. Note that this does not mean the receive buffer
       // of a TCP connection is filled. This simply means the TUN device itself
       // is blocked on handing packets to the rest part of the kernel.
-      *error =
-          quiche::QuicheStrCat("Write to the TUN device was blocked: ", errno);
+      *error = absl::StrCat("Write to the TUN device was blocked: ", errno);
       *blocked = true;
       stats_->OnWriteError(error);
     }
@@ -58,8 +56,7 @@
     std::string* error) {
   *blocked = false;
   if (fd_ < 0) {
-    *error = quiche::QuicheStrCat("Invalid file descriptor of the TUN device: ",
-                                  fd_);
+    *error = absl::StrCat("Invalid file descriptor of the TUN device: ", fd_);
     stats_->OnReadError(error);
     return nullptr;
   }
@@ -71,8 +68,7 @@
   // is no end of file. Therefore 0 also indicates error.
   if (result <= 0) {
     if (errno == EAGAIN || errno == EWOULDBLOCK) {
-      *error =
-          quiche::QuicheStrCat("Read from the TUN device was blocked: ", errno);
+      *error = absl::StrCat("Read from the TUN device was blocked: ", errno);
       *blocked = true;
       stats_->OnReadError(error);
     }