diff --git a/sandboxed_api/sandbox2/examples/zlib/zpipe_sandbox.cc b/sandboxed_api/sandbox2/examples/zlib/zpipe_sandbox.cc
index 24a7495..4f9459d 100644
--- a/sandboxed_api/sandbox2/examples/zlib/zpipe_sandbox.cc
+++ b/sandboxed_api/sandbox2/examples/zlib/zpipe_sandbox.cc
@@ -58,7 +58,12 @@ std::unique_ptr<sandbox2::Policy> GetPolicy() {
       .AllowStaticStartup()
       .AllowSystemMalloc()
       .AllowExit()
+#ifdef __NR_access
       .BlockSyscallWithErrno(__NR_access, ENOENT)
+#endif
+#ifdef __NR_faccessat
+      .BlockSyscallWithErrno(__NR_faccessat, ENOENT)
+#endif
       .BuildOrDie();
 }