diff --git a/include/fmt/format.h b/include/fmt/format.h
index bec24906..1fad5ab7 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -700,8 +700,11 @@ void basic_memory_buffer<T, SIZE, Allocator>::grow(std::size_t size) {
   if (old_data != store_) Allocator::deallocate(old_data, old_capacity);
 }
 
-using memory_buffer = basic_memory_buffer<char>;
-using wmemory_buffer = basic_memory_buffer<wchar_t>;
+template<std::size_t SIZE = inline_buffer_size, typename Allocator = std::allocator<T>>
+using memory_buffer = basic_memory_buffer<char, SIZE, Allocator>;
+
+template<std::size_t SIZE = inline_buffer_size, typename Allocator = std::allocator<T>>
+using wmemory_buffer = basic_memory_buffer<wchar_t, SIZE, Allocator>;
 
 /** A formatting error such as invalid format string. */
 FMT_CLASS_API