diff --git a/src/protocol-detail/probe.cpp b/src/protocol-detail/probe.cpp
index 2a3a71e..aa7755f 100644
--- a/src/protocol-detail/probe.cpp
+++ b/src/protocol-detail/probe.cpp
@@ -19,11 +19,9 @@
  */
 
 #include "probe.hpp"
-
-#include <boost/throw_exception.hpp>
-#include <ndn-cxx/encoding/tlv.hpp>
-
 #include "../logging.hpp"
+#include <ndn-cxx/encoding/tlv.hpp>
+#include <boost/throw_exception.hpp>
 
 namespace ndn {
 namespace ndncert {