diff --git a/dlls/mshtml/htmldoc.c b/dlls/mshtml/htmldoc.c
index 1c665b72557..1c0cc354dc4 100644
--- a/dlls/mshtml/htmldoc.c
+++ b/dlls/mshtml/htmldoc.c
@@ -4781,6 +4781,7 @@ static const tid_t HTMLDocumentNode_iface_tids[] = {
     IHTMLDocument3_tid,
     IHTMLDocument4_tid,
     IHTMLDocument5_tid,
+    IHTMLDocument6_tid,
     IDocumentSelector_tid,
     0
 };
diff --git a/dlls/mshtml/mshtml_private.h b/dlls/mshtml/mshtml_private.h
index 89344edf97b..04a1ccf49d2 100644
--- a/dlls/mshtml/mshtml_private.h
+++ b/dlls/mshtml/mshtml_private.h
@@ -143,6 +143,7 @@ typedef struct event_target_t event_target_t;
     XIID(IHTMLDocument3) \
     XIID(IHTMLDocument4) \
     XIID(IHTMLDocument5) \
+    XIID(IHTMLDocument6) \
     XIID(IHTMLDOMAttribute) \
     XIID(IHTMLDOMAttribute2) \
     XIID(IHTMLDOMChildrenCollection) \