diff --git a/clock/index.html b/clock/index.html
index a056c05..8e991aa 100644
--- a/clock/index.html
+++ b/clock/index.html
@@ -49,6 +49,7 @@ <h2>MMDDhhmmCCYYss</h2>
 
 <script>
 "use strict";
+const CLOCK_VERSION = "0.2.1"
 let utcP     = document.querySelector("#utc");
 let shellP   = document.querySelector("#shell");
 let qrCanvas = document.querySelector("#qrCanvas");