diff --git a/lib/bmp_writer/bmp_writer.cpp b/lib/bmp_writer/bmp_writer.cpp
index afc2799..9c68185 100644
--- a/lib/bmp_writer/bmp_writer.cpp
+++ b/lib/bmp_writer/bmp_writer.cpp
@@ -3,6 +3,7 @@
 
 #include <cstring>
 #include <filesystem>
+#include <iostream>
 
 BmpWriter::BmpWriter() {
   width_ = 0;
@@ -24,7 +25,7 @@ void BmpWriter::ExportField(char* dirname, CoordinatesField& field,
   file_.open(path, std::ios::out | std::ios::binary);
 
   if (!file_.is_open()) {
-    std::cout << "Can't open file: " << path.native() << std::endl;
+    std::cout << "Can't open file: " << path.string() << std::endl;
     return;
   }
 
diff --git a/lib/field/tsv_handler.cpp b/lib/field/tsv_handler.cpp
index 6941b92..c0f6af1 100644
--- a/lib/field/tsv_handler.cpp
+++ b/lib/field/tsv_handler.cpp
@@ -53,7 +53,7 @@ bool TsvHandler::ExportTSV(char* dirname, CoordinatesField& field, int64_t numbe
   std::ofstream file(path, std::ios::out);
 
   if (!file.is_open()) {
-    std::cout << "Can't open file: " << path.native() << std::endl;
+    std::cout << "Can't open file: " << path.string() << std::endl;
     return false;
   }