diff --git a/wintable/new/children.h b/wintable/new/children.h
index ba58939..6a3aff3 100644
--- a/wintable/new/children.h
+++ b/wintable/new/children.h
@@ -5,6 +5,7 @@ static const handlerfunc commandHandlers[] = {
 };
 
 static const handlerfunc notifyHandlers[] = {
+	headerNotifyHandler,
 	NULL,
 };
 
diff --git a/wintable/new/header.h b/wintable/new/header.h
index 14281ef..16b33f7 100644
--- a/wintable/new/header.h
+++ b/wintable/new/header.h
@@ -52,3 +52,17 @@ static void headerAddColumn(struct table *t, WCHAR *name)
 	if (SendMessage(t->header, HDM_INSERTITEM, (WPARAM) (100), (LPARAM) (&item)) == (LRESULT) (-1))
 		panic("error adding column to Table header");
 }
+
+HANDLER(headerNotifyHandler)
+{
+	NMHDR *nmhdr = (NMHDR *) lParam;
+
+	if (nmhdr->hwndFrom != t->header)
+		return FALSE;
+	if (nmhdr->code != HDN_ITEMCHANGED)
+		return FALSE;
+	// TODO
+	InvalidateRect(t->hwnd, NULL, TRUE);
+	*lResult = 0;
+	return TRUE;
+}