diff --git a/include/msxml.idl b/include/msxml.idl
index c6dd745a591..375bb64cd7c 100644
--- a/include/msxml.idl
+++ b/include/msxml.idl
@@ -346,6 +346,7 @@ interface IXMLElementNotificationSink : IDispatch
     helpstring("Msxml"),
     progid("Msxml"),
     threading(both),
+    version(1.0),
     uuid(cfc399af-d876-11d0-9c10-00c04fc99c8e)
 ]
 coclass XMLDocument
diff --git a/include/xmldom.idl b/include/xmldom.idl
index 3e3b61359e2..45e9f138594 100644
--- a/include/xmldom.idl
+++ b/include/xmldom.idl
@@ -740,6 +740,7 @@ dispinterface XMLDOMDocumentEvents
     progid("Microsoft.XMLDOM.1.0"),
     vi_progid("Microsoft.XMLDOM"),
     threading(both),
+    version(1.0),
     uuid(2933bf90-7b36-11d2-b20e-00c04f983e60)
 ]
 coclass DOMDocument
@@ -753,6 +754,7 @@ coclass DOMDocument
     progid("Microsoft.FreeThreadedXMLDOM.1.0"),
     vi_progid("Microsoft.FreeThreadedXMLDOM"),
     threading(both),
+    version(1.0),
     uuid(2933bf91-7b36-11d2-b20e-00c04f983e60)
 ]
 coclass DOMFreeThreadedDocument
@@ -821,6 +823,7 @@ interface IXMLHttpRequest : IDispatch
     progid("Microsoft.XMLHTTP.1.0"),
     vi_progid("Microsoft.XMLHTTP"),
     threading(apartment),
+    version(1.0),
     uuid(ed8c108e-4349-11d2-91a4-00c04f7969e8)
 ]
 coclass XMLHTTPRequest
diff --git a/include/xmldso.idl b/include/xmldso.idl
index 60af6c398ac..cde98dc89b0 100644
--- a/include/xmldso.idl
+++ b/include/xmldso.idl
@@ -53,6 +53,7 @@ interface IXMLDSOControl : IDispatch
     progid("Microsoft.XMLDSO.1.0"),
     vi_progid("Microsoft.XMLDSO"),
     threading(apartment),
+    version(1.0),
     uuid(550dda30-0541-11d2-9ca9-0060b0ec3d39)
 ]
 coclass XMLDSOControl