diff --git a/textstream/textstream.h b/textstream/textstream.h
index 523f638..35f02cf 100644
--- a/textstream/textstream.h
+++ b/textstream/textstream.h
@@ -5,7 +5,7 @@
  */
 
 /* 
- * Copyright (c) 2012-2013, Tomasz Sowa
+ * Copyright (c) 2012-2021, Tomasz Sowa
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
@@ -60,17 +60,20 @@ namespace PT
 	StringType can be either std::string or std::wstring
 	this class doesn't use UTF-8 in any kind
 */
-template<typename char_type, size_t stack_size, size_t heap_block_size>
+template<typename CharT, size_t stack_size, size_t heap_block_size>
 class TextStreamBase
 {
 public:
 
 	TextStreamBase();
 
+	typedef CharT char_type;
+
 	typedef MemBuffer<char_type, stack_size, heap_block_size> buffer_type;
 	typedef typename buffer_type::iterator iterator;
 	typedef typename buffer_type::const_iterator const_iterator;
 
+
 	void   clear();
 	bool   empty() const;
 	size_t size() const;