diff --git a/specs/XI2proto.txt b/specs/XI2proto.txt
index d2c7478..7c5011c 100644
--- a/specs/XI2proto.txt
+++ b/specs/XI2proto.txt
@@ -1,5 +1,5 @@
-The X Input Extension
-=====================
+The X Input Extension 2.x
+=========================
 :toc:
 :numbered: