diff --git a/index.html b/index.html
index 2f6c8d6..c879fb1 100644
--- a/index.html
+++ b/index.html
@@ -564,6 +564,7 @@ var effect = (VANTA.CLOUDS2 || VANTA.CLOUDS)({
             line.setAttribute('y2', y2);
             line.setAttribute('stroke', '#e6dfd1');
             line.setAttribute('stroke-width', isMain ? 5 : 3);
+            line.setAttribute('stroke-linecap', 'round');
             hourMarks.appendChild(line);
         }