diff --git a/ndn-cpp/util/dynamic-uint8-vector.cpp b/ndn-cpp/util/dynamic-uint8-vector.cpp
index ae1b621..197fc0e 100644
--- a/ndn-cpp/util/dynamic-uint8-vector.cpp
+++ b/ndn-cpp/util/dynamic-uint8-vector.cpp
@@ -1,3 +1,4 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
 /**
  * Copyright (C) 2013 Regents of the University of California.
  * @author: Jeff Thompson <jefft0@remap.ucla.edu>