diff --git a/OpenRa.Game/OpenRa.Game.csproj b/OpenRa.Game/OpenRa.Game.csproj
index 5f729c2e55..8b2a788f15 100644
--- a/OpenRa.Game/OpenRa.Game.csproj
+++ b/OpenRa.Game/OpenRa.Game.csproj
@@ -81,7 +81,7 @@
     <Compile Include="OrderManager.cs" />
     <Compile Include="Ore.cs" />
     <Compile Include="PathSearch.cs" />
-    <Compile Include="Stopwatch.cs" />
+    <Compile Include="Support\Stopwatch.cs" />
     <Compile Include="Support\PerfHistory.cs" />
     <Compile Include="Traits\AcceptsOre.cs" />
     <Compile Include="Traits\Activities\Attack.cs" />
diff --git a/OpenRa.Game/Stopwatch.cs b/OpenRa.Game/Support/Stopwatch.cs
similarity index 91%
rename from OpenRa.Game/Stopwatch.cs
rename to OpenRa.Game/Support/Stopwatch.cs
index 7e9842db05..2ab329402f 100644
--- a/OpenRa.Game/Stopwatch.cs
+++ b/OpenRa.Game/Support/Stopwatch.cs
@@ -4,7 +4,7 @@ using System.Linq;
 using System.Text;
 using System.Runtime.InteropServices;
 
-namespace OpenRa.Game
+namespace OpenRa.Game.Support
 {
 	class Stopwatch
 	{