1 files changed, 1 insertions, 2 deletions
diff --git a/zenXml/zenxml/dom.h b/zenXml/zenxml/dom.h
index ff409eb1..cba12cfb 100644
--- a/zenXml/zenxml/dom.h
+++ b/zenXml/zenxml/dom.h
@@ -317,8 +317,7 @@ private:
     XmlDoc           (const XmlDoc&) = delete; //not implemented, thanks to XmlElement::parent_
     XmlDoc& operator=(const XmlDoc&) = delete;
 
-    //std::string version_ {"1.0"}; -> who cares!?
-    std::string version_;
+    std::string version_ {"1.0"}; //non-optional for valid XML
     std::string encoding_{"utf-8"};
     std::string standalone_;