diff --git a/intl/uconv/src/charsetalias.properties b/intl/uconv/src/charsetalias.properties
index 850b2fe1b84..2857f7e217d 100644
--- a/intl/uconv/src/charsetalias.properties
+++ b/intl/uconv/src/charsetalias.properties
@@ -319,3 +319,5 @@ csviqr=VIQR
 x-obsoleted-shift_jis=x-obsoleted-Shift_JIS
 x-obsoleted-iso-2022-jp=x-obsoleted-ISO-2022-JP
 x-obsoleted-euc-jp=x-obsoleted-EUC-JP
+x-gbk=x-gbk
+windows-936=windows-936