diff --git a/include/fmt/core.h b/include/fmt/core.h
index 42e47b98..52c812be 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -401,7 +401,7 @@ struct error_handler {
   FMT_CONSTEXPR error_handler(const error_handler&) {}
 
   // This function is intentionally not constexpr to give a compile-time error.
-  FMT_API FMT_NORETURN void on_error(const char* message);
+  FMT_NORETURN FMT_API void on_error(const char* message);
 };
 }  // namespace internal