diff --git a/include/fmt/locale.h b/include/fmt/locale.h
index b5990ef1..7301bf92 100644
--- a/include/fmt/locale.h
+++ b/include/fmt/locale.h
@@ -52,8 +52,8 @@ inline OutputIt vformat_to(
 
 template <typename OutputIt, typename S, typename... Args,
           bool enable = detail::is_output_iterator<OutputIt, char_t<S>>::value>
-inline auto format_to(OutputIt out, const std::locale& loc, const S& format_str,
-                      Args&&... args) ->
+inline auto format_to(OutputIt out, const std::locale& loc,
+                      const S& format_str, Args&&... args) ->
     typename std::enable_if<enable, OutputIt>::type {
   const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
   return vformat_to(out, loc, to_string_view(format_str), vargs);