diff --git a/source/uCEFBufferPanel.pas b/source/uCEFBufferPanel.pas
index bce9523b..74c8eb59 100644
--- a/source/uCEFBufferPanel.pas
+++ b/source/uCEFBufferPanel.pas
@@ -641,6 +641,8 @@ begin
         Canvas.Brush.Style := bsSolid;
         Canvas.FillRect(rect(0, 0, Width, Height));
       end;
+
+  if Assigned(OnPaint) then OnPaint(Self);
 end;
 
 {$IFDEF MSWINDOWS}