diff --git a/Source/Editor/GUI/Timeline/Tracks/ActorTrack.cs b/Source/Editor/GUI/Timeline/Tracks/ActorTrack.cs
index 4a0993cb9..109bf5ccd 100644
--- a/Source/Editor/GUI/Timeline/Tracks/ActorTrack.cs
+++ b/Source/Editor/GUI/Timeline/Tracks/ActorTrack.cs
@@ -3,7 +3,6 @@
 using System;
 using System.IO;
 using System.Linq;
-using FlaxEditor.CustomEditors;
 using FlaxEditor.GUI.ContextMenu;
 using FlaxEditor.GUI.Timeline.Undo;
 using FlaxEditor.SceneGraph;
diff --git a/Source/Editor/GUI/Timeline/Tracks/ObjectTrack.cs b/Source/Editor/GUI/Timeline/Tracks/ObjectTrack.cs
index 1042e3014..f0de3584b 100644
--- a/Source/Editor/GUI/Timeline/Tracks/ObjectTrack.cs
+++ b/Source/Editor/GUI/Timeline/Tracks/ObjectTrack.cs
@@ -100,6 +100,7 @@ namespace FlaxEditor.GUI.Timeline.Tracks
         /// <param name="obj">The object.</param>
         protected virtual void OnObjectExistenceChanged(object obj)
         {
+            TooltipText = obj != null ? Editor.Instance.CodeDocs.GetTooltip(obj.GetType()) : "null";
         }
 
         /// <summary>