diff --git a/web/js-ts/serialv2.js b/web/js-ts/serialv2.js
index e5df588..51727d5 100644
--- a/web/js-ts/serialv2.js
+++ b/web/js-ts/serialv2.js
@@ -24,6 +24,7 @@ let LichtWaardes;
 const between = (x, min, max) => {
     return x >= min && x <= max;
   };
+const updatehtml = (div, variable)
 // Request a port and open a connection.
 async function connect() {
     //vraag aan de browser om een serial port te selecteren