diff --git a/packages/modelviewer.dev/examples/annotations/index.html b/packages/modelviewer.dev/examples/annotations/index.html
index c01d428f9c..d35ff9ab02 100644
--- a/packages/modelviewer.dev/examples/annotations/index.html
+++ b/packages/modelviewer.dev/examples/annotations/index.html
@@ -346,7 +346,7 @@ <h4><span class="font-medium">Show Dimensions. </span></h4>
 
   // update svg
   function drawLine(svgLine, dotHotspot1, dotHotspot2, dimensionHotspot) {
-    if (dotHotspot1 && dotHotspot1) {
+    if (dotHotspot1 && dotHotspot2) {
       svgLine.setAttribute('x1', dotHotspot1.canvasPosition.x);
       svgLine.setAttribute('y1', dotHotspot1.canvasPosition.y);
       svgLine.setAttribute('x2', dotHotspot2.canvasPosition.x);