diff --git a/src/Gui/Gui.cs b/src/Gui/Gui.cs
index 670b643..58e5871 100644
--- a/src/Gui/Gui.cs
+++ b/src/Gui/Gui.cs
@@ -93,7 +93,7 @@ namespace WorldOfPeacecraft
 			int mapWidth = (map.GetLength(0)) * tileSize;
 			int mapHeight = (map.GetLength(1)) * tileSize;
 			this.SuspendLayout();
-			this.ClientSize = new Size(mapWidth, mapHeight);
+			this.SetClientSizeCore(mapWidth, mapHeight);
 			Board.Size = new Size(mapWidth, mapHeight);
 			this.ResumeLayout();
 			this.PerformLayout();