diff --git a/OpenRa.Game/OpenRa.Game.csproj b/OpenRa.Game/OpenRa.Game.csproj
index 87e964d61f..9fe3375de5 100644
--- a/OpenRa.Game/OpenRa.Game.csproj
+++ b/OpenRa.Game/OpenRa.Game.csproj
@@ -110,7 +110,6 @@
     <Compile Include="Traits\AcceptsOre.cs" />
     <Compile Include="Traits\Activities\Attack.cs" />
     <Compile Include="Traits\Activities\CaptureBuilding.cs" />
-    <Compile Include="Traits\Activities\Circle.cs" />
     <Compile Include="Traits\Activities\Demolish.cs" />
     <Compile Include="Traits\Activities\Fly.cs" />
     <Compile Include="Traits\Activities\FlyAttack.cs" />
diff --git a/OpenRa.Game/Traits/Activities/Circle.cs b/OpenRa.Game/Traits/Activities/Circle.cs
deleted file mode 100644
index be4bf96765..0000000000
--- a/OpenRa.Game/Traits/Activities/Circle.cs
+++ /dev/null
@@ -1,27 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-
-namespace OpenRa.Game.Traits.Activities
-{
-	class Circle : IActivity
-	{
-		public IActivity NextActivity { get; set; }
-		bool isCanceled;
-		readonly int2 Cell;
-
-		public Circle(int2 cell) { Cell = cell; }
-
-		public IActivity Tick(Actor self)
-		{
-			if (isCanceled) return NextActivity;
-			return Util.SequenceActivities(
-				new Fly(Util.CenterOfCell(Cell)),
-				new FlyTimed(50, 20),
-				this);
-		}
-
-		public void Cancel(Actor self) { isCanceled = true; NextActivity = null; }
-	}
-}