diff --git a/include/fmt/format-inl.h b/include/fmt/format-inl.h
index 76e65cc1..be1ddf40 100644
--- a/include/fmt/format-inl.h
+++ b/include/fmt/format-inl.h
@@ -166,11 +166,8 @@ inline void fwrite_fully(const void* ptr, size_t size, size_t count,
   size_t written = std::fwrite(ptr, size, count, stream);
   if (written < count) FMT_THROW(system_error(errno, "cannot write to file"));
 }
-}  // namespace detail
-
-#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR)
-namespace detail {
 
+#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
 template <typename Locale>
 locale_ref::locale_ref(const Locale& loc) : locale_(&loc) {
   static_assert(std::is_same<Locale, std::locale>::value, "");
@@ -192,19 +189,18 @@ template <typename Char> FMT_FUNC Char decimal_point_impl(locale_ref loc) {
   return std::use_facet<std::numpunct<Char>>(loc.get<std::locale>())
       .decimal_point();
 }
-}  // namespace detail
 #else
-template <typename Char>
-FMT_FUNC std::string detail::grouping_impl(locale_ref) {
+template <typename Char> FMT_FUNC std::string grouping_impl(locale_ref) {
   return "\03";
 }
-template <typename Char> FMT_FUNC Char detail::thousands_sep_impl(locale_ref) {
+template <typename Char> FMT_FUNC Char thousands_sep_impl(locale_ref) {
   return FMT_STATIC_THOUSANDS_SEPARATOR;
 }
-template <typename Char> FMT_FUNC Char detail::decimal_point_impl(locale_ref) {
+template <typename Char> FMT_FUNC Char decimal_point_impl(locale_ref) {
   return '.';
 }
 #endif
+}  // namespace detail
 
 FMT_API FMT_FUNC format_error::~format_error() FMT_NOEXCEPT = default;
 FMT_API FMT_FUNC system_error::~system_error() FMT_NOEXCEPT = default;