diff --git a/include/fmt/core.h b/include/fmt/core.h
index f4fe1088..b48dac1b 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -166,6 +166,12 @@
 #endif
 
 #if !defined(FMT_HEADER_ONLY) && defined(_WIN32)
+#  if FMT_MSC_VER
+#    define FMT_NO_W4275 __pragma(warning(suppress : 4275))
+#  else
+#    define FMT_NO_W4275
+#  endif
+#  define FMT_CLASS_API FMT_NO_W4275
 #  ifdef FMT_EXPORT
 #    define FMT_API __declspec(dllexport)
 #  elif defined(FMT_SHARED)
@@ -173,6 +179,9 @@
 #    define FMT_EXTERN_TEMPLATE_API FMT_API
 #  endif
 #endif
+#ifndef FMT_CLASS_API
+#  define FMT_CLASS_API
+#endif
 #ifndef FMT_API
 #  define FMT_API
 #endif
diff --git a/include/fmt/format.h b/include/fmt/format.h
index b993beca..e0c128b9 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -696,6 +696,7 @@ using memory_buffer = basic_memory_buffer<char>;
 using wmemory_buffer = basic_memory_buffer<wchar_t>;
 
 /** A formatting error such as invalid format string. */
+FMT_CLASS_API
 class FMT_API format_error : public std::runtime_error {
  public:
   explicit format_error(const char* message) : std::runtime_error(message) {}
@@ -2707,6 +2708,7 @@ class arg_formatter : public internal::arg_formatter_base<Range> {
  An error returned by an operating system or a language runtime,
  for example a file opening error.
 */
+FMT_CLASS_API
 class FMT_API system_error : public std::runtime_error {
  private:
   void init(int err_code, string_view format_str, format_args args);