diff --git a/firmware/html.zip b/firmware/html.zip
index 94e6db8b..f4814614 100644
Binary files a/firmware/html.zip and b/firmware/html.zip differ
diff --git a/sd-card/html/readconfigparam.js b/sd-card/html/readconfigparam.js
index 7a315cc7..3bdbf86a 100644
--- a/sd-card/html/readconfigparam.js
+++ b/sd-card/html/readconfigparam.js
@@ -77,6 +77,7 @@ function ParseConfig() {
      ParamAddValue(param, catname, "MaxRateValue", 1, true);
      ParamAddValue(param, catname, "ErrorMessage");
      ParamAddValue(param, catname, "CheckDigitIncreaseConsistency");     
+     ParamAddValue(param, catname, "IgnoreLeadingNaN");     
 
      var catname = "MQTT";
      category[catname] = new Object();