diff --git a/src/common/boost_serialization_helper.h b/src/common/boost_serialization_helper.h
index 37932899..2ba8a52c 100644
--- a/src/common/boost_serialization_helper.h
+++ b/src/common/boost_serialization_helper.h
@@ -21,8 +21,8 @@ namespace tools
   bool serialize_obj_to_file(t_object& obj, const std::string& file_path)
   {
     TRY_ENTRY();
-    std::ofstream data_file;
-    data_file.open( file_path , std::ios_base::binary | std::ios_base::out| std::ios::trunc);
+    boost::filesystem::ofstream data_file;
+    data_file.open( epee::string_encoding::utf8_to_wstring(file_path) , std::ios_base::binary | std::ios_base::out| std::ios::trunc);
     if(data_file.fail())
       return false;
 
@@ -64,8 +64,8 @@ namespace tools
   {
     TRY_ENTRY();
 
-    std::ifstream data_file;  
-    data_file.open( file_path, std::ios_base::binary | std::ios_base::in);
+    boost::filesystem::ifstream data_file;  
+    data_file.open( epee::string_encoding::utf8_to_wstring(file_path), std::ios_base::binary | std::ios_base::in);
     if(data_file.fail())
       return false;
     boost::archive::binary_iarchive a(data_file);