diff --git a/tools/testing/selftests/timers/clocksource-switch.c b/tools/testing/selftests/timers/clocksource-switch.c
index b57f0a9be4902..ed5b71f5b37cc 100644
--- a/tools/testing/selftests/timers/clocksource-switch.c
+++ b/tools/testing/selftests/timers/clocksource-switch.c
@@ -23,17 +23,17 @@
  */
 
 
+#include <fcntl.h>
 #include <stdio.h>
-#include <unistd.h>
 #include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
 #include <sys/time.h>
 #include <sys/timex.h>
-#include <time.h>
 #include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <string.h>
 #include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
 #include "../kselftest.h"