diff --git a/include/json/writer.h b/include/json/writer.h
index fb0852a..99d74c7 100644
--- a/include/json/writer.h
+++ b/include/json/writer.h
@@ -110,6 +110,8 @@ public:
    *  - Number of precision digits for formatting of real values.
    *  - "precisionType": "significant"(default) or "decimal"
    *  - Type of precision for formatting of real values.
+   *  - "emitUTF8": false or true
+   *  - If true, outputs raw UTF8 strings instead of escaping them.
 
    *  You can examine 'settings_` yourself
    *  to see the defaults. You can also write and read them just like any