diff --git a/include/fmt/core.h b/include/fmt/core.h
index 4dcf428b..0bb974d9 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -1779,7 +1779,7 @@ inline std::back_insert_iterator<Container> format_to(
 }
 
 template <typename S, typename Char = char_t<S>>
-inline std::basic_string<Char> vformat(
+FMT_INLINE std::basic_string<Char> vformat(
     const S& format_str,
     basic_format_args<buffer_context<type_identity_t<Char>>> args) {
   return internal::vformat(to_string_view(format_str), args);
@@ -1798,7 +1798,7 @@ inline std::basic_string<Char> vformat(
 // Pass char_t as a default template parameter instead of using
 // std::basic_string<char_t<S>> to reduce the symbol size.
 template <typename S, typename... Args, typename Char = char_t<S>>
-inline std::basic_string<Char> format(const S& format_str, Args&&... args) {
+FMT_INLINE std::basic_string<Char> format(const S& format_str, Args&&... args) {
   const auto& vargs = internal::make_args_checked<Args...>(format_str, args...);
   return internal::vformat(to_string_view(format_str), vargs);
 }
diff --git a/include/fmt/format.h b/include/fmt/format.h
index 80b464ea..6b43aeac 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -3402,6 +3402,11 @@ typename buffer_context<Char>::iterator internal::vformat_to(
                                           args);
 }
 
+#ifndef FMT_HEADER_ONLY
+extern template format_context::iterator internal::vformat_to(
+    internal::buffer<char>&, string_view, basic_format_args<format_context>);
+#endif
+
 template <typename S, typename Char = char_t<S>,
           FMT_ENABLE_IF(internal::is_string<S>::value)>
 inline typename buffer_context<Char>::iterator vformat_to(
@@ -3512,7 +3517,7 @@ inline format_to_n_result<OutputIt> format_to_n(OutputIt out, std::size_t n,
 }
 
 template <typename Char>
-inline std::basic_string<Char> internal::vformat(
+std::basic_string<Char> internal::vformat(
     basic_string_view<Char> format_str,
     basic_format_args<buffer_context<type_identity_t<Char>>> args) {
   basic_memory_buffer<Char> buffer;