diff --git a/ndn-cpp/encoding/binary-xml-wire-format.hpp b/ndn-cpp/encoding/binary-xml-wire-format.hpp
index e9e4802..c327d17 100644
--- a/ndn-cpp/encoding/binary-xml-wire-format.hpp
+++ b/ndn-cpp/encoding/binary-xml-wire-format.hpp
@@ -4,7 +4,7 @@
  */
 
 #ifndef NDN_BINARYXMLWIREFORMAT_HPP
-#define	NDN_BINARYXMLWIREFORMAT_HPP
+#define NDN_BINARYXMLWIREFORMAT_HPP
 
 #include "wire-format.hpp"