diff --git a/src/security/sec-public-info.hpp b/src/security/sec-public-info.hpp
index aa35ff9..b68875b 100644
--- a/src/security/sec-public-info.hpp
+++ b/src/security/sec-public-info.hpp
@@ -6,8 +6,8 @@
  * See COPYING for copyright and distribution information.
  */
 
-#ifndef NDN_SEC_PUBLIC_INFO_HPP
-#define NDN_SEC_PUBLIC_INFO_HPP
+#ifndef NDN_SECURITY_SEC_PUBLIC_INFO_HPP
+#define NDN_SECURITY_SEC_PUBLIC_INFO_HPP
 
 #include "../name.hpp"
 #include "security-common.hpp"
@@ -399,6 +399,6 @@
     defaultCertificate_ = getCertificate(certName);
 }
 
-}
+} // namespace ndn
 
-#endif
+#endif //NDN_SECURITY_SEC_PUBLIC_INFO_HPP