diff --git a/designer/designer.pp b/designer/designer.pp
index 7979148a4f..cc3712bb94 100644
--- a/designer/designer.pp
+++ b/designer/designer.pp
@@ -1762,7 +1762,6 @@ begin
       with AWinControl.Controls[I] do begin
         if (Visible or ((csDesigning in ComponentState)
           and not (csNoDesignVisible in ControlStyle)))
-        and (csOpaque in ControlStyle)
         then begin
           Clip := ExcludeClipRect(aDDC.DC, Left, Top, Left + Width, Top + Height);
           if Clip = NullRegion then exit;