diff --git a/V203/usb/scope/bin/index.js b/V203/usb/scope/bin/index.js
index 61ef536..4c58e05 100644
--- a/V203/usb/scope/bin/index.js
+++ b/V203/usb/scope/bin/index.js
@@ -61,6 +61,7 @@ function initWebSocket() {
       console.log (stored);
       if (stored) {
         gMark = JSON.parse (stored);
+        if (gMark.type === 'volt') MarkerVolt.checked = true;
       }
       connected = true;
     };