diff --git a/Source/Common/md5.h b/Source/Common/md5.h
index 0d8fd6cc6..e108d3968 100644
--- a/Source/Common/md5.h
+++ b/Source/Common/md5.h
@@ -41,6 +41,8 @@ documentation and/or software.
 
 #pragma once
 
+#include <string.h>
+#include <stdio.h>
 #include <string>
 #include <functional>
 #include "path.h"