diff --git a/src/zipios++/zipoutputstream.cpp b/src/zipios++/zipoutputstream.cpp
index d8104395ba..4c40469955 100644
--- a/src/zipios++/zipoutputstream.cpp
+++ b/src/zipios++/zipoutputstream.cpp
@@ -5,6 +5,9 @@
 
 #include "zipoutputstreambuf.h"
 #include "zipoutputstream.h"
+#if defined(_WIN32) && defined(ZIPIOS_UTF8)
+#include <Base/FileInfo.h>
+#endif
 
 using std::ostream;
 
@@ -25,7 +28,12 @@ ZipOutputStream::ZipOutputStream( const std::string &filename )
   : std::ostream( nullptr ),
     ofs( nullptr )
 {
+#if defined(_WIN32) && defined(ZIPIOS_UTF8)
+  std::wstring wsfilename = Base::FileInfo(filename).toStdWString();
+  ofs = new std::ofstream( wsfilename.c_str(), std::ios::out | std::ios::binary ) ;
+#else
   ofs = new std::ofstream( filename.c_str(), std::ios::out | std::ios::binary ) ;
+#endif
   ozf = new ZipOutputStreambuf( ofs->rdbuf() ) ;
   this->init( ozf ) ;
 }