diff --git a/tests/nghttp2_buffer_test.c b/tests/nghttp2_buffer_test.c
index edb95267..4dec94ed 100644
--- a/tests/nghttp2_buffer_test.c
+++ b/tests/nghttp2_buffer_test.c
@@ -24,10 +24,10 @@
  */
 #include "nghttp2_buffer_test.h"
 
-#include <CUnit/CUnit.h>
-
 #include <stdio.h>
 
+#include <CUnit/CUnit.h>
+
 #include "nghttp2_buffer.h"
 #include "nghttp2_net.h"
 
diff --git a/tests/nghttp2_session_test.c b/tests/nghttp2_session_test.c
index cc3d4875..f21bed0e 100644
--- a/tests/nghttp2_session_test.c
+++ b/tests/nghttp2_session_test.c
@@ -24,11 +24,11 @@
  */
 #include "nghttp2_session_test.h"
 
-#include <CUnit/CUnit.h>
-
 #include <stdio.h>
 #include <assert.h>
 
+#include <CUnit/CUnit.h>
+
 #include "nghttp2_session.h"
 #include "nghttp2_stream.h"
 #include "nghttp2_net.h"