--- http_response.py-old	2005-08-21 16:53:11.000000000 +0200
+++ http_response.py	2005-08-21 16:50:40.000000000 +0200
@@ -155,13 +155,13 @@
         self.buffered = True
         self.javascript_code = None
 
-    def set_content_type(self, content_type, charset='iso-8859-1'):
-        """(content_type : string, charset : string = 'iso-8859-1')
+    def set_content_type(self, content_type, charset=None):
+        """(content_type : string, charset : string = None)
 
         Set the content type of the response to the MIME type specified by
-        'content_type'.  Also sets the charset, defaulting to 'iso-8859-1'.
+        'content_type'.  Also sets the charset, defaulting to self.DEFAULT_CHARSET.
         """
-        self.charset = charset
+        self.charset = charset or self.DEFAULT_CHARSET
         self.content_type = content_type
 
     def set_charset(self, charset):