diff --git a/OpenRa.Game/Traits/Reservable.cs b/OpenRa.Game/Traits/Reservable.cs
index b459bc3da7..b25b610839 100644
--- a/OpenRa.Game/Traits/Reservable.cs
+++ b/OpenRa.Game/Traits/Reservable.cs
@@ -2,6 +2,11 @@
 
 namespace OpenRa.Game.Traits
 {
+	class ReservableInfo : ITraitInfo
+	{
+		public object Create(Actor self) { return new Reservable(self); }
+	}
+
 	class Reservable : ITick
 	{
 		public Reservable(Actor self) { }
diff --git a/OpenRa.Game/Traits/SeedsOre.cs b/OpenRa.Game/Traits/SeedsOre.cs
index 98bb98ab9e..f5dd4a123d 100644
--- a/OpenRa.Game/Traits/SeedsOre.cs
+++ b/OpenRa.Game/Traits/SeedsOre.cs
@@ -1,6 +1,11 @@
 
 namespace OpenRa.Game.Traits
 {
+	class SeedsOreInfo : ITraitInfo
+	{
+		public object Create(Actor self) { return new SeedsOre(self); }
+	}
+
 	class SeedsOre : ITick
 	{
 		public SeedsOre( Actor self ) {}
diff --git a/OpenRa.Game/Traits/SquishByTank.cs b/OpenRa.Game/Traits/SquishByTank.cs
index ed84275899..baaeacb70b 100644
--- a/OpenRa.Game/Traits/SquishByTank.cs
+++ b/OpenRa.Game/Traits/SquishByTank.cs
@@ -5,6 +5,11 @@ using OpenRa.Game.GameRules;
 
 namespace OpenRa.Game.Traits
 {
+	class SquishByTankInfo : ITraitInfo
+	{
+		public object Create(Actor self) { return new SquishByTank(self); }
+	}
+
 	class SquishByTank : ICrushable
 	{
 		readonly Actor self;