diff --git a/OpenRA.Game/OpenRA.Game.csproj b/OpenRA.Game/OpenRA.Game.csproj
index 6d8eda9288..95bd44c8ab 100644
--- a/OpenRA.Game/OpenRA.Game.csproj
+++ b/OpenRA.Game/OpenRA.Game.csproj
@@ -108,7 +108,6 @@
     <Compile Include="Download.cs" />
     <Compile Include="Effects\AsyncAction.cs" />
     <Compile Include="Effects\DelayedAction.cs" />
-    <Compile Include="Effects\FlashTarget.cs" />
     <Compile Include="Effects\IEffect.cs" />
     <Compile Include="Game.cs" />
     <Compile Include="GameRules\ActorInfo.cs" />
diff --git a/OpenRA.Mods.Common/Activities/Demolish.cs b/OpenRA.Mods.Common/Activities/Demolish.cs
index a1d95ca248..ea44d67ca7 100644
--- a/OpenRA.Mods.Common/Activities/Demolish.cs
+++ b/OpenRA.Mods.Common/Activities/Demolish.cs
@@ -11,6 +11,7 @@
 
 using System.Linq;
 using OpenRA.Effects;
+using OpenRA.Mods.Common.Effects;
 using OpenRA.Mods.Common.Traits;
 using OpenRA.Traits;
 
diff --git a/OpenRA.Mods.Common/Activities/ExternalCaptureActor.cs b/OpenRA.Mods.Common/Activities/ExternalCaptureActor.cs
index 7518758b33..f14477185d 100644
--- a/OpenRA.Mods.Common/Activities/ExternalCaptureActor.cs
+++ b/OpenRA.Mods.Common/Activities/ExternalCaptureActor.cs
@@ -10,7 +10,7 @@
 #endregion
 
 using OpenRA.Activities;
-using OpenRA.Effects;
+using OpenRA.Mods.Common.Effects;
 using OpenRA.Mods.Common.Traits;
 using OpenRA.Traits;
 
diff --git a/OpenRA.Game/Effects/FlashTarget.cs b/OpenRA.Mods.Common/Effects/FlashTarget.cs
similarity index 95%
rename from OpenRA.Game/Effects/FlashTarget.cs
rename to OpenRA.Mods.Common/Effects/FlashTarget.cs
index 0bcb5e4ecd..9c59bfdc94 100644
--- a/OpenRA.Game/Effects/FlashTarget.cs
+++ b/OpenRA.Mods.Common/Effects/FlashTarget.cs
@@ -11,9 +11,10 @@
 
 using System.Collections.Generic;
 using System.Linq;
+using OpenRA.Effects;
 using OpenRA.Graphics;
 
-namespace OpenRA.Effects
+namespace OpenRA.Mods.Common.Effects
 {
 	public class FlashTarget : IEffect
 	{
diff --git a/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj b/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj
index 4cb22e0ca3..5669bfe180 100644
--- a/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj
+++ b/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj
@@ -151,6 +151,7 @@
     <Compile Include="Effects\Contrail.cs" />
     <Compile Include="Effects\ContrailFader.cs" />
     <Compile Include="Effects\CrateEffect.cs" />
+    <Compile Include="Effects\FlashTarget.cs" />
     <Compile Include="Effects\FloatingText.cs" />
     <Compile Include="Effects\GravityBomb.cs" />
     <Compile Include="Effects\LaserZap.cs" />
diff --git a/OpenRA.Mods.Common/Traits/ProximityCapturable.cs b/OpenRA.Mods.Common/Traits/ProximityCapturable.cs
index dd3100d8ec..135ff4bcd8 100644
--- a/OpenRA.Mods.Common/Traits/ProximityCapturable.cs
+++ b/OpenRA.Mods.Common/Traits/ProximityCapturable.cs
@@ -12,8 +12,8 @@
 using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;
-using OpenRA.Effects;
 using OpenRA.Graphics;
+using OpenRA.Mods.Common.Effects;
 using OpenRA.Mods.Common.Graphics;
 using OpenRA.Traits;
 
diff --git a/OpenRA.Mods.Common/Widgets/WorldInteractionControllerWidget.cs b/OpenRA.Mods.Common/Widgets/WorldInteractionControllerWidget.cs
index 5e4c0e913f..965bdd7796 100644
--- a/OpenRA.Mods.Common/Widgets/WorldInteractionControllerWidget.cs
+++ b/OpenRA.Mods.Common/Widgets/WorldInteractionControllerWidget.cs
@@ -12,7 +12,6 @@
 using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;
-using OpenRA.Effects;
 using OpenRA.Graphics;
 using OpenRA.Mods.Common.Effects;
 using OpenRA.Orders;