diff --git a/static/index.html b/static/index.html
index 496e78b..54ea041 100644
--- a/static/index.html
+++ b/static/index.html
@@ -29,6 +29,7 @@
           <input type=radio name=decim value="4">4x</input>
           <input type=radio name=decim value="10">10x</input>
           <input type=radio name=decim value="20">20x</input>
+          <input type=radio name=decim value="100">100x</input>
         </fieldset>
         <fieldset>
           <legend>History length</legend>