diff --git a/kernel/io.cc b/kernel/io.cc
index bfc0c03e20f..0fdbd3c3791 100644
--- a/kernel/io.cc
+++ b/kernel/io.cc
@@ -1,11 +1,8 @@
+#include "kernel/yosys_common.h"
+#include "kernel/log.h"
 #include <iostream>
 #include <dirent.h>
 #include <string>
-#include <cstdarg>
-#include <cstdio>
-#include "kernel/io.h"
-#include "kernel/gzip.h"
-#include "kernel/log.h"
 
 YOSYS_NAMESPACE_BEGIN