diff --git a/server/objects/PlaybackSession.js b/server/objects/PlaybackSession.js
index 6b90088b..6ebfa623 100644
--- a/server/objects/PlaybackSession.js
+++ b/server/objects/PlaybackSession.js
@@ -158,7 +158,7 @@ class PlaybackSession {
       this.dayOfWeek = date.format(new Date(), 'dddd')
     }
 
-    this.timeListening += timeListened
+    this.timeListening += Number.parseInt(timeListened)
     this.updatedAt = Date.now()
   }