diff --git a/aos/vision/debug/debug_window.cc b/aos/vision/debug/debug_window.cc
index 4729939..b998c03 100644
--- a/aos/vision/debug/debug_window.cc
+++ b/aos/vision/debug/debug_window.cc
@@ -3,8 +3,9 @@
 #include <gdk-pixbuf/gdk-pixbuf.h>
 #include <gtk/gtk.h>
 #include <poll.h>
-#include <stdio.h>
-#include <stdlib.h>
+
+#include <cstdio>
+#include <cstdlib>
 #include <functional>
 #include <memory>
 #include <vector>