diff --git a/include/coreinit/thread.h b/include/coreinit/thread.h
index cccfcc6..8f4852b 100644
--- a/include/coreinit/thread.h
+++ b/include/coreinit/thread.h
@@ -1,5 +1,6 @@
 #pragma once
 #include <wut.h>
+#include "systeminfo.h"
 #include "context.h"
 #include "time.h"
 #include "threadqueue.h"