diff --git a/src/node_file.cc b/src/node_file.cc
index 5a50aacb1b939d..f77cc88fcb4246 100644
--- a/src/node_file.cc
+++ b/src/node_file.cc
@@ -3125,55 +3125,6 @@ static void GetFormatOfExtensionlessFile(
   return args.GetReturnValue().Set(EXTENSIONLESS_FORMAT_JAVASCRIPT);
 }
 
-#ifdef _WIN32
-std::wstring ConvertToWideString(const std::string& str) {
-  int size_needed = MultiByteToWideChar(
-      CP_UTF8, 0, &str[0], static_cast<int>(str.size()), nullptr, 0);
-  std::wstring wstrTo(size_needed, 0);
-  MultiByteToWideChar(CP_UTF8,
-                      0,
-                      &str[0],
-                      static_cast<int>(str.size()),
-                      &wstrTo[0],
-                      size_needed);
-  return wstrTo;
-}
-
-#define BufferValueToPath(str)                                                 \
-  std::filesystem::path(ConvertToWideString(str.ToString()))
-
-std::string ConvertWideToUTF8(const std::wstring& wstr) {
-  if (wstr.empty()) return std::string();
-
-  int size_needed = WideCharToMultiByte(CP_UTF8,
-                                        0,
-                                        &wstr[0],
-                                        static_cast<int>(wstr.size()),
-                                        nullptr,
-                                        0,
-                                        nullptr,
-                                        nullptr);
-  std::string strTo(size_needed, 0);
-  WideCharToMultiByte(CP_UTF8,
-                      0,
-                      &wstr[0],
-                      static_cast<int>(wstr.size()),
-                      &strTo[0],
-                      size_needed,
-                      nullptr,
-                      nullptr);
-  return strTo;
-}
-
-#define PathToString(path) ConvertWideToUTF8(path.wstring());
-
-#else  // _WIN32
-
-#define BufferValueToPath(str) std::filesystem::path(str.ToStringView());
-#define PathToString(path) path.native();
-
-#endif  // _WIN32
-
 static void CpSyncCheckPaths(const FunctionCallbackInfo<Value>& args) {
   Environment* env = Environment::GetCurrent(args);
   Isolate* isolate = env->isolate();
diff --git a/src/node_modules.cc b/src/node_modules.cc
index 94ed9bc4b3c157..4678061a9321e3 100644
--- a/src/node_modules.cc
+++ b/src/node_modules.cc
@@ -337,14 +337,13 @@ void BindingData::GetNearestParentPackageJSON(
   bool slashCheck = path_value.ToStringView().ends_with(kPathSeparator);
 
   ToNamespacedPath(realm->env(), &path_value);
-
-  std::string path_value_str = path_value.ToString();
+  std::filesystem::path path = BufferValueToPath(path_value);
   if (slashCheck) {
-    path_value_str.push_back(kPathSeparator);
+    path += kPathSeparator;
   }
 
   auto package_json =
-      TraverseParent(realm, std::filesystem::path(path_value_str));
+      TraverseParent(realm, path);
 
   if (package_json != nullptr) {
     args.GetReturnValue().Set(package_json->Serialize(realm));
@@ -363,14 +362,12 @@ void BindingData::GetNearestParentPackageJSONType(
   bool slashCheck = path_value.ToStringView().ends_with(kPathSeparator);
 
   ToNamespacedPath(realm->env(), &path_value);
-
-  std::string path_value_str = path_value.ToString();
+  std::filesystem::path path = BufferValueToPath(path_value);
   if (slashCheck) {
-    path_value_str.push_back(kPathSeparator);
+    path += kPathSeparator;
   }
 
-  auto package_json =
-      TraverseParent(realm, std::filesystem::path(path_value_str));
+  auto package_json = TraverseParent(realm, path);
 
   if (package_json == nullptr) {
     return;
diff --git a/src/util.cc b/src/util.cc
index a372eb4d88ca1d..531a5330c2cb74 100644
--- a/src/util.cc
+++ b/src/util.cc
@@ -885,4 +885,43 @@ v8::Maybe<int> GetValidFileMode(Environment* env,
   return v8::Just(mode);
 }
 
+#ifdef _WIN32
+std::wstring ConvertToWideString(const std::string& str) {
+  int size_needed = MultiByteToWideChar(
+      CP_UTF8, 0, &str[0], static_cast<int>(str.size()), nullptr, 0);
+  std::wstring wstrTo(size_needed, 0);
+  MultiByteToWideChar(CP_UTF8,
+                      0,
+                      &str[0],
+                      static_cast<int>(str.size()),
+                      &wstrTo[0],
+                      size_needed);
+  return wstrTo;
+}
+
+std::string ConvertWideToUTF8(const std::wstring& wstr) {
+  if (wstr.empty()) return std::string();
+
+  int size_needed = WideCharToMultiByte(CP_UTF8,
+                                        0,
+                                        &wstr[0],
+                                        static_cast<int>(wstr.size()),
+                                        nullptr,
+                                        0,
+                                        nullptr,
+                                        nullptr);
+  std::string strTo(size_needed, 0);
+  WideCharToMultiByte(CP_UTF8,
+                      0,
+                      &wstr[0],
+                      static_cast<int>(wstr.size()),
+                      &strTo[0],
+                      size_needed,
+                      nullptr,
+                      nullptr);
+  return strTo;
+}
+
+#endif  // _WIN32
+
 }  // namespace node
diff --git a/src/util.h b/src/util.h
index b1f316eebc7199..d32c71cd70aee8 100644
--- a/src/util.h
+++ b/src/util.h
@@ -49,6 +49,11 @@
 #include <unordered_map>
 #include <utility>
 #include <vector>
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <unistd.h>
+#endif
 
 #ifdef __GNUC__
 #define MUST_USE_RESULT __attribute__((warn_unused_result))
@@ -1013,6 +1018,23 @@ v8::Maybe<int> GetValidFileMode(Environment* env,
 // case insensitive.
 inline bool IsWindowsBatchFile(const char* filename);
 
+#ifdef _WIN32
+std::wstring ConvertToWideString(const std::string& str);
+
+#define BufferValueToPath(str)                                                 \
+  std::filesystem::path(ConvertToWideString(str.ToString()))
+
+std::string ConvertWideToUTF8(const std::wstring& wstr);
+
+#define PathToString(path) ConvertWideToUTF8(path.wstring());
+
+#else  // _WIN32
+
+#define BufferValueToPath(str) std::filesystem::path(str.ToStringView());
+#define PathToString(path) path.native();
+
+#endif  // _WIN32
+
 }  // namespace node
 
 #endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS