diff --git a/frontend/js/labs/_measure.js b/frontend/js/labs/_measure.js
index d3df3c6..9618c3f 100644
--- a/frontend/js/labs/_measure.js
+++ b/frontend/js/labs/_measure.js
@@ -66,7 +66,7 @@
 
   function setTool(t) {
     ensure();
-    if (t === 'off') { mode = null; svg.classList.remove('on'); paintBar(); render(); return; }
+    if (t === 'off') { mode = null; svg.classList.remove('on'); bar.classList.remove('on'); paintBar(); render(); return; }
     mode = t;
     var c = center();
     if (t === 'ruler' && !ruler) ruler = { ax: c.x - 110, ay: c.y, bx: c.x + 110, by: c.y };