diff --git a/obs-websocket-dotnet/Events.cs b/obs-websocket-dotnet/Events.cs
index 4a3504f..8ea18d8 100644
--- a/obs-websocket-dotnet/Events.cs
+++ b/obs-websocket-dotnet/Events.cs
@@ -444,7 +444,7 @@ protected void ProcessEventType(string eventType, JObject body)
                     break;
 
                 case nameof(MediaInputPlaybackStarted):
-                    MediaInputPlaybackStarted?.Invoke(this, new MediaInputPlaybackStartedEventArgs((string)body["sourceName"]));
+                    MediaInputPlaybackStarted?.Invoke(this, new MediaInputPlaybackStartedEventArgs((string)body["inputName"]));
                     break;
 
                 case nameof(MediaInputActionTriggered):
@@ -529,4 +529,4 @@ protected void ProcessEventType(string eventType, JObject body)
 
         #endregion
     }
-}
\ No newline at end of file
+}