diff --git a/include/fmt/core.h b/include/fmt/core.h
index 0b2fdeff..761162eb 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -1769,7 +1769,7 @@ std::basic_string<Char> vformat(
     basic_string_view<Char> format_str,
     basic_format_args<buffer_context<type_identity_t<Char>>> args);
 
-std::string vformat(string_view format_str, format_args args);
+FMT_API std::string vformat(string_view format_str, format_args args);
 
 template <typename Char>
 typename FMT_BUFFER_CONTEXT(Char)::iterator vformat_to(