diff --git a/Controller/XWebinarServiceControllerBase.cs b/Controller/XWebinarServiceControllerBase.cs
index 4ae3ed5..7f2534f 100644
--- a/Controller/XWebinarServiceControllerBase.cs
+++ b/Controller/XWebinarServiceControllerBase.cs
@@ -17,7 +17,7 @@ namespace xWebinarService.Controller
     /// <summary>
     /// a Controller base Class which implement based Actions to Provides Webinar Provider Access ...
     /// </summary>
-    public class XWebinarServiceControllerBase : XIBaseProviderController, IXWebinarServiceControllerActions
+    public abstract class XWebinarServiceControllerBase : XIBaseProviderController, IXWebinarServiceControllerActions
     {
         //
         #region Props ...