diff --git a/src/components/VideoPlayer.vue b/src/components/VideoPlayer.vue
index f136e97f..c5cdead4 100644
--- a/src/components/VideoPlayer.vue
+++ b/src/components/VideoPlayer.vue
@@ -559,7 +559,7 @@ export default {
         updateMarkers() {
             const markers = this.$refs.container.querySelector(".shaka-ad-markers");
             const array = ["to right"];
-            this.sponsors?.segments.forEach(segment => {
+            this.sponsors?.segments?.forEach(segment => {
                 const start = (segment.segment[0] / this.video.duration) * 100;
                 const end = (segment.segment[1] / this.video.duration) * 100;