diff --git a/localize/translations/tidy.pot b/localize/translations/tidy.pot
index 3a5c734..c9612b4 100644
--- a/localize/translations/tidy.pot
+++ b/localize/translations/tidy.pot
@@ -5,7 +5,7 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
 "X-Generator: HTML Tidy poconvert.rb\n"
 "Project-Id-Version: \n"
-"POT-Creation-Date: 2017-09-23 07:53:22\n"
+"POT-Creation-Date: 2017-09-24 13:41:11\n"
 "Last-Translator: jderry\n"
 "Language-Team: \n"
 
@@ -251,7 +251,8 @@ msgid ""
 "<code>&lt;!DOCTYPE html&gt;</code>."
 "<br/>"
 "If set to <var>auto</var> (the default) Tidy will use an educated guess "
-"based upon the contents of the document."
+"based upon the contents of the document. Note that selecting this option "
+"will <em>not</em> change the current document's DOCTYPE on output. "
 "<br/>"
 "If set to <var>strict</var>, Tidy will set the DOCTYPE to the HTML4 or "
 "XHTML1 strict DTD."
diff --git a/src/language_en.h b/src/language_en.h
index 18db40c..62ff0c9 100755
--- a/src/language_en.h
+++ b/src/language_en.h
@@ -285,7 +285,8 @@ static languageDefinition language_en = { whichPluralForm_en, {
         "<code>&lt;!DOCTYPE html&gt;</code>."
         "<br/>"
         "If set to <var>auto</var> (the default) Tidy will use an educated guess "
-        "based upon the contents of the document."
+        "based upon the contents of the document. Note that selecting this option "
+        "will <em>not</em> change the current document's DOCTYPE on output. "
         "<br/>"
         "If set to <var>strict</var>, Tidy will set the DOCTYPE to the HTML4 or "
         "XHTML1 strict DTD."