diff --git a/src/renderer/components/ft-video-player/ft-video-player.js b/src/renderer/components/ft-video-player/ft-video-player.js
index 2333cbce93947..aa3eacbc072d3 100644
--- a/src/renderer/components/ft-video-player/ft-video-player.js
+++ b/src/renderer/components/ft-video-player/ft-video-player.js
@@ -657,7 +657,7 @@ export default Vue.extend({
 
       markerDiv.title = chapter.title
       markerDiv.className = 'chapterMarker'
-      markerDiv.style.marginLeft = (chapter.startSeconds / this.lengthSeconds) * 100 - 0.5 + '%'
+      markerDiv.style.marginLeft = `calc(${(chapter.startSeconds / this.lengthSeconds) * 100}% - 1px)`
 
       this.player.el().querySelector('.vjs-progress-holder').appendChild(markerDiv)
     },