diff --git a/MediaToolkit/Model/MediaStream.cs b/MediaToolkit/Model/MediaStream.cs
index 87719ee..62b945e 100644
--- a/MediaToolkit/Model/MediaStream.cs
+++ b/MediaToolkit/Model/MediaStream.cs
@@ -75,7 +75,7 @@ public class MediaStream
     public string StartTime { get; set; }
 
     [JsonPropertyName("duration_ts")]
-    public int DurationTs { get; set; }
+    public long DurationTs { get; set; }
     public string Duration { get; set; }
 
     [JsonPropertyName("bit_rate")]