diff --git a/Source/Core/Common/FileUtil.h b/Source/Core/Common/FileUtil.h
index 763da70404..c8524254c2 100644
--- a/Source/Core/Common/FileUtil.h
+++ b/Source/Core/Common/FileUtil.h
@@ -230,6 +230,7 @@ public:
     std::clearerr(m_file);
   }
 
+private:
   std::FILE* m_file;
   bool m_good;
 };