diff --git a/app/MindWork AI Studio/Chat/ChatThread.cs b/app/MindWork AI Studio/Chat/ChatThread.cs
index a280d7f3..3e41161c 100644
--- a/app/MindWork AI Studio/Chat/ChatThread.cs	
+++ b/app/MindWork AI Studio/Chat/ChatThread.cs	
@@ -28,11 +28,6 @@ public sealed record ChatThread
     /// </summary>
     public string SelectedProfile { get; set; } = string.Empty;
 
-    /// <summary>
-    /// Is this chat thread using data sources?
-    /// </summary>
-    public bool UseDataSources { get; set; }
-
     /// <summary>
     /// The data source options for this chat thread.
     /// </summary>