diff --git a/components/tachart/tacustomseries.pas b/components/tachart/tacustomseries.pas
index c73b0e3c07..0b3b0f61c8 100644
--- a/components/tachart/tacustomseries.pas
+++ b/components/tachart/tacustomseries.pas
@@ -826,7 +826,7 @@ begin
     Source.Broadcaster.Unsubscribe(FListener);
   FSource := AValue;
   Source.Broadcaster.Subscribe(FListener);
-  UpdateParentChart;
+  SourceChanged(Self);
 end;
 
 procedure TChartSeries.SetStyles(AValue: TChartStyles);