diff --git a/OpenRA.Mods.RA/Render/WithIdleOverlay.cs b/OpenRA.Mods.RA/Render/WithIdleOverlay.cs
index f93c14df91..20181fd732 100644
--- a/OpenRA.Mods.RA/Render/WithIdleOverlay.cs
+++ b/OpenRA.Mods.RA/Render/WithIdleOverlay.cs
@@ -26,7 +26,7 @@ namespace OpenRA.Mods.RA.Render
 		public object Create(ActorInitializer init) { return new WithIdleOverlay(init.self, this); }
 	}
 
-	public class WithIdleOverlay : INotifyDamageStateChanged, INotifyBuildComplete
+	public class WithIdleOverlay : INotifyDamageStateChanged, INotifyBuildComplete, INotifySold
 	{
 		Animation overlay;
 		bool buildComplete;
@@ -50,6 +50,12 @@ namespace OpenRA.Mods.RA.Render
 			buildComplete = true;
 		}
 
+		public void Sold(Actor self) { }
+		public void Selling(Actor self)
+		{
+			buildComplete = false;
+		}
+
 		public void DamageStateChanged(Actor self, AttackInfo e)
 		{
 			overlay.ReplaceAnim(RenderSprites.NormalizeSequence(overlay, e.DamageState, overlay.CurrentSequence.Name));