diff --git a/Radzen.Blazor/RadzenDropDown.razor.cs b/Radzen.Blazor/RadzenDropDown.razor.cs
index bd142de61c1..0fa2fea2e1f 100644
--- a/Radzen.Blazor/RadzenDropDown.razor.cs
+++ b/Radzen.Blazor/RadzenDropDown.razor.cs
@@ -364,6 +364,9 @@ public override void Dispose()
             }
         }
 
+        /// <summary>
+        /// Called when popup is closed.
+        /// </summary>
         [JSInvokable]
         public async Task OnClose()
         {