diff --git a/NEWS b/NEWS
index 32dbc9d54..0eb0d17c5 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,9 @@
+4.0.9 (2019-XX-XX)
+------------------
+
+Bug fixes
+ - [web] properly handle Windows-1256 charaset (#4781)
+
 4.0.8 (2019-07-19)
 ------------------
 
diff --git a/UI/MailPartViewers/UIxMailPartHTMLViewer.m b/UI/MailPartViewers/UIxMailPartHTMLViewer.m
index 3405cf8ce..c339393de 100644
--- a/UI/MailPartViewers/UIxMailPartHTMLViewer.m
+++ b/UI/MailPartViewers/UIxMailPartHTMLViewer.m
@@ -82,6 +82,7 @@ _xmlCharsetForCharset (NSString *charset)
     { @"windows-1250", XML_CHAR_ENCODING_ERROR}, // unsupported, will trigger windows-1250 -> utf8 conversion
     { @"windows-1251", XML_CHAR_ENCODING_ERROR}, // unsupported, will trigger windows-1251 -> utf8 conversion
     { @"windows-1255", XML_CHAR_ENCODING_ERROR}, // unsupported, will trigger windows-1255 -> utf8 conversion
+    { @"windows-1256", XML_CHAR_ENCODING_ERROR}, // unsupported, will trigger windows-1255 -> utf8 conversion
     { @"windows-1257", XML_CHAR_ENCODING_ERROR}, // unsupported, will trigger windows-1257 -> utf8 conversion
     { @"gb2312", XML_CHAR_ENCODING_ERROR},       // unsupported, will trigger gb2312 -> utf8 conversion
     { @"gbk", XML_CHAR_ENCODING_ERROR},          // unsupported, will trigger gb2312 -> utf8 conversion