diff --git a/src/conf-file-processor.hpp b/src/conf-file-processor.hpp
index 1b99cea..2a32cee 100644
--- a/src/conf-file-processor.hpp
+++ b/src/conf-file-processor.hpp
@@ -21,8 +21,8 @@
  * \author Minsheng Zhang <mzhang4@memphis.edu>
  *
  **/
-#ifndef CONF_PROCESSOR_HPP
-#define CONF_PROCESSOR_HPP
+#ifndef NLSR_CONF_FILE_PROCESSOR_HPP
+#define NLSR_CONF_FILE_PROCESSOR_HPP
 
 #include <boost/smart_ptr/shared_ptr.hpp>
 #include <boost/property_tree/ptree.hpp>
@@ -77,4 +77,4 @@
 };
 
 } // namespace nlsr
-#endif //CONF_PROCESSOR_HPP
+#endif // NLSR_CONF_FILE_PROCESSOR_HPP
diff --git a/src/conf-parameter.hpp b/src/conf-parameter.hpp
index 5718b12..0bee942 100644
--- a/src/conf-parameter.hpp
+++ b/src/conf-parameter.hpp
@@ -19,8 +19,8 @@
  * NLSR, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
  **/
 
-#ifndef CONF_PARAMETER_HPP
-#define CONF_PARAMETER_HPP
+#ifndef NLSR_CONF_PARAMETER_HPP
+#define NLSR_CONF_PARAMETER_HPP
 
 #include <iostream>
 #include <boost/cstdint.hpp>
@@ -447,4 +447,4 @@
 
 } // namespace nlsr
 
-#endif //CONF_PARAMETER_HPP
+#endif // NLSR_CONF_PARAMETER_HPP
diff --git a/src/update/prefix-update-commands.hpp b/src/update/prefix-update-commands.hpp
index 4b499d2..9cb2790 100644
--- a/src/update/prefix-update-commands.hpp
+++ b/src/update/prefix-update-commands.hpp
@@ -19,8 +19,8 @@
  * NLSR, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
  **/
 
-#ifndef UPDATE_PREFIX_UPDATE_COMMANDS_HPP
-#define UPDATE_PREFIX_UPDATE_COMMANDS_HPP
+#ifndef NLSR_UPDATE_PREFIX_UPDATE_COMMANDS_HPP
+#define NLSR_UPDATE_PREFIX_UPDATE_COMMANDS_HPP
 
 #include <ndn-cxx/mgmt/nfd/control-command.hpp>
 
@@ -42,4 +42,4 @@
 } // namespace update
 } // namespace nlsr
 
-#endif // UPDATE_PREFIX_UPDATE_COMMANDS_HPP
+#endif // NLSR_UPDATE_PREFIX_UPDATE_COMMANDS_HPP
diff --git a/src/update/prefix-update-processor.hpp b/src/update/prefix-update-processor.hpp
index b1347b8..4f08bc7 100644
--- a/src/update/prefix-update-processor.hpp
+++ b/src/update/prefix-update-processor.hpp
@@ -19,8 +19,8 @@
  * NLSR, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
  **/
 
-#ifndef UPDATE_PREFIX_UPDATE_PROCESSOR_HPP
-#define UPDATE_PREFIX_UPDATE_PROCESSOR_HPP
+#ifndef NLSR_UPDATE_PREFIX_UPDATE_PROCESSOR_HPP
+#define NLSR_UPDATE_PREFIX_UPDATE_PROCESSOR_HPP
 
 #include "name-prefix-list.hpp"
 #include "test-access-control.hpp"
@@ -149,4 +149,4 @@
 } // namespace update
 } // namespace nlsr
 
-#endif // UPDATE_PREFIX_UPDATE_PROCESSOR_HPP
+#endif // NLSR_UPDATE_PREFIX_UPDATE_PROCESSOR_HPP