diff --git a/src/time_zone_name_win.cc b/src/time_zone_name_win.cc
index 23fe53c..daa9a56 100644
--- a/src/time_zone_name_win.cc
+++ b/src/time_zone_name_win.cc
@@ -134,7 +134,6 @@ std::string Utf16ToUtf8(const wchar_t* ptr, size_t size) {
       std::min<size_t>(result.capacity(), std::numeric_limits<int>::max()), 1);
   do {
     result.resize(len);
-    // TODO: Switch to std::string::data() when we require C++17 or higher.
     len = static_cast<std::size_t>(::WideCharToMultiByte(
         CP_UTF8, WC_ERR_INVALID_CHARS, ptr, chars_len, &result[0],
         static_cast<int>(len), nullptr, nullptr));