diff --git a/OpenRA.FileFormats/Platform.cs b/OpenRA.FileFormats/Platform.cs
index f07398c460..b25559e86d 100644
--- a/OpenRA.FileFormats/Platform.cs
+++ b/OpenRA.FileFormats/Platform.cs
@@ -21,7 +21,7 @@ namespace OpenRA
 	{
 		public static PlatformType CurrentPlatform { get { return currentPlatform.Value; } }
 
-		static Lazy<PlatformType> currentPlatform = Lazy.New(GetCurrentPlatform);
+		static Lazy<PlatformType> currentPlatform = Lazy.New((Func<PlatformType>)GetCurrentPlatform);
 
 		static PlatformType GetCurrentPlatform()
 		{