diff --git a/html/script.js b/html/script.js
index 28a6092..0254dd9 100644
--- a/html/script.js
+++ b/html/script.js
@@ -4948,6 +4948,7 @@ function shiftTrace(offset) {
         $('#leg_sel').text('Slow down! ...');
         return;
     }
+    traceOpts = { follow: traceOpts.follow, };
     $('#leg_sel').text('Loading ...');
     if (!traceDate || offset == "today") {
         traceDate = new Date();