diff --git a/sandboxed_api/sandbox2/examples/network_proxy/networkproxy_bin.cc b/sandboxed_api/sandbox2/examples/network_proxy/networkproxy_bin.cc
index 90ce982e..5fbc47ba 100644
--- a/sandboxed_api/sandbox2/examples/network_proxy/networkproxy_bin.cc
+++ b/sandboxed_api/sandbox2/examples/network_proxy/networkproxy_bin.cc
@@ -9,6 +9,7 @@
 #include <unistd.h>
 
 #include <cerrno>
+#include <cstdint>
 #include <cstring>
 
 #include "absl/base/log_severity.h"