diff --git a/intl/uconv/src/charsetalias.properties b/intl/uconv/src/charsetalias.properties
index 00b7ef9c80e..d35f55d5c40 100644
--- a/intl/uconv/src/charsetalias.properties
+++ b/intl/uconv/src/charsetalias.properties
@@ -50,12 +50,12 @@
 # 1. key should always be in lower case ascii so we can do case insensitive
 #    comparison in the code faster.
 # 2. value should be the one used in unicode converter
-# 3. If you want to add more charset, mailto:ftang@netscape.com 
 #
-# 4. If the charset is not used for document charset, but font charset
+# 3. If the charset is not used for document charset, but font charset
 #    (e.g. XLFD charset- such as JIS x0201, JIS x0208), don't put here
 #
 
+ascii=us-ascii
 us-ascii=us-ascii
 ansi_x3.4-1968=us-ascii
 646=us-ascii