diff --git a/stl/inc/chrono b/stl/inc/chrono
index 3a94bdeca66..58c711194a5 100644
--- a/stl/inc/chrono
+++ b/stl/inc/chrono
@@ -2176,7 +2176,9 @@ namespace chrono {
 
     _NODISCARD inline string _Tzdb_update_version(const string_view _Version, const size_t _Num_leap_seconds) {
         string _Icu_version{_Version.substr(0, _Version.find_last_of('.'))};
-        return _STD move(_Icu_version) + "." + _STD to_string(_Num_leap_seconds);
+        _Icu_version += '.';
+        _Icu_version += _STD to_string(_Num_leap_seconds);
+        return _Icu_version;
     }
 
     struct _Secret_tzdb_list_construct_tag {