diff --git a/io/passwordfile.h b/io/passwordfile.h
index 1db09e6..6b81453 100644
--- a/io/passwordfile.h
+++ b/io/passwordfile.h
@@ -5,6 +5,7 @@
 
 #include <c++utilities/io/binaryreader.h>
 #include <c++utilities/io/binarywriter.h>
+#include <c++utilities/io/nativefilestream.h>
 
 #include <fstream>
 #include <iostream>
@@ -51,7 +52,7 @@ private:
     std::unique_ptr<NodeEntry> m_rootEntry;
     std::string m_extendedHeader;
     std::string m_encryptedExtendedHeader;
-    std::fstream m_file;
+    IoUtilities::NativeFileStream m_file;
     IoUtilities::BinaryReader m_freader;
     IoUtilities::BinaryWriter m_fwriter;
 };