diff --git a/aos/flatbuffer_merge.cc b/aos/flatbuffer_merge.cc
index f89165b..8e31596 100644
--- a/aos/flatbuffer_merge.cc
+++ b/aos/flatbuffer_merge.cc
@@ -2,10 +2,11 @@
 
 #include <cstdio>
 
-#include "aos/flatbuffer_utils.h"
 #include "flatbuffers/flatbuffers.h"
 #include "flatbuffers/minireflect.h"
 
+#include "aos/flatbuffer_utils.h"
+
 namespace aos {
 
 namespace {