diff --git a/ndn-cpp/encoding/wire-format.hpp b/ndn-cpp/encoding/wire-format.hpp
index 32bf82f..c229131 100644
--- a/ndn-cpp/encoding/wire-format.hpp
+++ b/ndn-cpp/encoding/wire-format.hpp
@@ -4,7 +4,7 @@
  */
 
 #ifndef NDN_WIREFORMAT_HPP
-#define	NDN_WIREFORMAT_HPP
+#define NDN_WIREFORMAT_HPP
 
 #include "../common.hpp"
 #include <vector>