diff --git a/src/crypto/x509/root_nacl.go b/src/crypto/x509/root_nacl.go
new file mode 100644
index 0000000000..4413f64738
--- /dev/null
+++ b/src/crypto/x509/root_nacl.go
@@ -0,0 +1,8 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package x509
+
+// Possible certificate files; stop after finding one.
+var certFiles = []string{}