diff --git a/OpenRA.Mods.Common/Widgets/Logic/Ingame/IngameMenuLogic.cs b/OpenRA.Mods.Common/Widgets/Logic/Ingame/IngameMenuLogic.cs
index cb8f781d12..47e43e2b31 100644
--- a/OpenRA.Mods.Common/Widgets/Logic/Ingame/IngameMenuLogic.cs
+++ b/OpenRA.Mods.Common/Widgets/Logic/Ingame/IngameMenuLogic.cs
@@ -21,7 +21,7 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 {
 	public class IngameMenuLogic : ChromeLogic
 	{
-		Widget menu;
+		readonly Widget menu;
 
 		[ObjectCreator.UseCtor]
 		public IngameMenuLogic(Widget widget, ModData modData, World world, Action onExit, WorldRenderer worldRenderer, IngameInfoPanel activePanel)