diff --git a/desktop_version/src/FileSystemUtils.cpp b/desktop_version/src/FileSystemUtils.cpp
index bf7cbf72..79233e27 100644
--- a/desktop_version/src/FileSystemUtils.cpp
+++ b/desktop_version/src/FileSystemUtils.cpp
@@ -16,7 +16,12 @@
 #if defined(_WIN32)
 #include <windows.h>
 #include <shlobj.h>
-#define mkdir(a, b) CreateDirectory(a, NULL)
+int mkdir(char* path, int mode)
+{
+	WCHAR utf16_path[MAX_PATH];
+	MultiByteToWideChar(CP_UTF8, 0, path, -1, utf16_path, MAX_PATH);
+	return CreateDirectoryW(utf16_path, NULL);
+}
 #define VNEEDS_MIGRATION (mkdirResult != 0)
 #elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__HAIKU__) || defined(__DragonFly__)
 #include <unistd.h>
@@ -585,7 +590,7 @@ static void PLATFORM_getOSDirectory(char* output)
 	SHGetFolderPathW(NULL, CSIDL_PERSONAL, NULL, SHGFP_TYPE_CURRENT, utf16_path);
 	WideCharToMultiByte(CP_UTF8, 0, utf16_path, -1, output, MAX_PATH, NULL, NULL);
 	SDL_strlcat(output, "\\VVVVVV\\", MAX_PATH);
-	CreateDirectory(output, NULL);
+	mkdir(output, 0);
 #else
 	SDL_strlcpy(output, PHYSFS_getPrefDir("distractionware", "VVVVVV"), MAX_PATH);
 #endif