diff --git a/Utilities/File.h b/Utilities/File.h
index 0498a9ab74..0d9e985785 100644
--- a/Utilities/File.h
+++ b/Utilities/File.h
@@ -576,4 +576,17 @@ namespace fs
 		result.reset(std::make_unique<container_stream<T>>(std::forward<T>(container)));
 		return result;
 	}
+
+	template <typename... Args>
+	bool write_file(const std::string& path, bs_t<fs::open_mode> mode, const Args&... args)
+	{
+		if (fs::file f{path, mode})
+		{
+			// Write args sequentially
+			int seq[]{ (f.write(args), 0)... };
+			return true;
+		}
+
+		return false;
+	}
 }
diff --git a/rpcs3/Emu/System.cpp b/rpcs3/Emu/System.cpp
index 4d0031625e..67203e332d 100644
--- a/rpcs3/Emu/System.cpp
+++ b/rpcs3/Emu/System.cpp
@@ -95,7 +95,7 @@ void Emulator::Init()
 	fs::create_dir(dev_hdd0 + "home/00000001/exdata/");
 	fs::create_dir(dev_hdd0 + "home/00000001/savedata/");
 	fs::create_dir(dev_hdd0 + "home/00000001/trophy/");
-	if (fs::file f{dev_hdd0 + "home/00000001/localusername", fs::create + fs::excl + fs::write}) f.write("User"s);
+	fs::write_file(dev_hdd0 + "home/00000001/localusername", fs::create + fs::excl + fs::write, "User"s);
 	fs::create_dir(dev_hdd1 + "cache/");
 	fs::create_dir(dev_hdd1 + "game/");
 	fs::create_path(dev_hdd1);