diff --git a/components/colorpalette/colorpalette.pas b/components/colorpalette/colorpalette.pas
index 767aa6c48..6a6d1869a 100644
--- a/components/colorpalette/colorpalette.pas
+++ b/components/colorpalette/colorpalette.pas
@@ -145,6 +145,7 @@ type
     function GetCellWidth: Integer; inline;
     function GetColorIndex(X,Y: Integer): Integer;
     function GetHintText(AIndex: Integer): String; virtual;
+    procedure Loaded; override;
     procedure MouseDown(Button: TMouseButton; Shift:TShiftState; X, Y:Integer); override;
     procedure MouseEnter; override;
     procedure MouseLeave; override;
@@ -507,6 +508,12 @@ begin
   DoInsertColor(AIndex, AColor, AColorName);
 end;
 
+procedure TCustomColorPalette.Loaded;
+begin
+  inherited;
+  UpdateSize;
+end;
+
 procedure TCustomColorPalette.LoadPalette(const FileName: String;
   AItems: TPaletteItems = [piColors, piColumnCount]);
 var