diff --git a/OpenRA.Game/Widgets/Widget.cs b/OpenRA.Game/Widgets/Widget.cs
index 32a1f0ebcd..2f19e0a150 100644
--- a/OpenRA.Game/Widgets/Widget.cs
+++ b/OpenRA.Game/Widgets/Widget.cs
@@ -524,8 +524,10 @@ namespace OpenRA.Widgets
 
 		public virtual void RemoveChildren()
 		{
-			while (Children.Count > 0)
-				RemoveChild(Children[Children.Count - 1]);
+			foreach (var child in Children)
+				child?.Removed();
+
+			Children.Clear();
 		}
 
 		public virtual void Hidden()