1 files changed, 1 insertions, 1 deletions

diff --git a/client/src/app/videos/video-watch/video-watch.component.ts b/client/src/app/videos/video-watch/video-watch.component.ts
index 756f66726..d4b60b001 100644
--- a/client/src/app/videos/video-watch/video-watch.component.ts
+++ b/client/src/app/videos/video-watch/video-watch.component.ts
@@ -313,7 +313,7 @@ export class VideoWatchComponent implements OnInit, OnDestroy {
 
     this.metaService.setTag('og:image', this.video.thumbnailPath);
 
-    this.metaService.setTag('og:duration', this.video.duration);
+    this.metaService.setTag('og:duration', this.video.duration.toString());
 
     this.metaService.setTag('og:site_name', 'PeerTube');