diff --git a/aos/mutex/mutex_test.cc b/aos/mutex/mutex_test.cc
index 9d371b7..cc659a5 100644
--- a/aos/mutex/mutex_test.cc
+++ b/aos/mutex/mutex_test.cc
@@ -10,13 +10,13 @@
 #include "gtest/gtest.h"
 
 #include "aos/die.h"
-#include "aos/time/time.h"
-#include "aos/util/death_test_log_implementation.h"
-#include "aos/util/thread.h"
 #include "aos/ipc_lib/aos_sync.h"
 #include "aos/ipc_lib/core_lib.h"
 #include "aos/testing/test_logging.h"
 #include "aos/testing/test_shm.h"
+#include "aos/time/time.h"
+#include "aos/util/death_test_log_implementation.h"
+#include "aos/util/thread.h"
 
 namespace aos {
 namespace testing {