diff --git a/OpenRA.Mods.RA/Player/TechTree.cs b/OpenRA.Mods.RA/Player/TechTree.cs
index 32bd2f2ec3..cb627cca48 100755
--- a/OpenRA.Mods.RA/Player/TechTree.cs
+++ b/OpenRA.Mods.RA/Player/TechTree.cs
@@ -1,6 +1,6 @@
 #region Copyright & License Information
 /*
- * Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
+ * Copyright 2007-2013 The OpenRA Developers (see AUTHORS)
  * This file is part of OpenRA, which is free software. It is made
  * available to you under the terms of the GNU General Public License
  * as published by the Free Software Foundation. For more information,
@@ -17,7 +17,7 @@ namespace OpenRA.Mods.RA
 {
 	public class TechTreeInfo : ITraitInfo
 	{
-		public object Create(ActorInitializer init) { return new TechTree(init);}
+		public object Create(ActorInitializer init) { return new TechTree(init); }
 	}
 
 	public class TechTree
@@ -42,23 +42,23 @@ namespace OpenRA.Mods.RA
 		public void Update()
 		{
 			var buildables = GatherBuildables(player);
-			foreach(var w in watchers)
+			foreach (var w in watchers)
 				w.Update(buildables);
 		}
 
 		public void Add(string key, BuildableInfo info, ITechTreeElement tte)
 		{
-			watchers.Add(new Watcher( key, info, tte ));
+			watchers.Add(new Watcher(key, info, tte));
 		}
 
 		public void Remove(string key)
 		{
-			watchers.RemoveAll(x => x.key == key);
+			watchers.RemoveAll(x => x.Key == key);
 		}
 
-		static Cache<string, List<Actor>> GatherBuildables( Player player )
+		static Cache<string, List<Actor>> GatherBuildables(Player player)
 		{
-			var ret = new Cache<string, List<Actor>>( x => new List<Actor>() );
+			var ret = new Cache<string, List<Actor>>(x => new List<Actor>());
 			if (player == null)
 				return ret;
 
@@ -89,16 +89,17 @@ namespace OpenRA.Mods.RA
 
 		class Watcher
 		{
-			public readonly string key;
+			public readonly string Key;
+
 			// strings may be either actor type, or "alternate name" key
-			public readonly string[] prerequisites;
-			public readonly ITechTreeElement watcher;
+			readonly string[] prerequisites;
+			readonly ITechTreeElement watcher;
 			bool hasPrerequisites;
 			int buildLimit;
 
 			public Watcher(string key, BuildableInfo info, ITechTreeElement watcher)
 			{
-				this.key = key;
+				this.Key = key;
 				this.prerequisites = info.Prerequisites;
 				this.watcher = watcher;
 				this.hasPrerequisites = false;
@@ -112,15 +113,14 @@ namespace OpenRA.Mods.RA
 
 			public void Update(Cache<string, List<Actor>> buildables)
 			{
-				var hasReachedBuildLimit = buildLimit > 0 && buildables[key].Count >= buildLimit;
-
+				var hasReachedBuildLimit = buildLimit > 0 && buildables[Key].Count >= buildLimit;
 				var nowHasPrerequisites = HasPrerequisites(buildables) && !hasReachedBuildLimit;
 
-				if( nowHasPrerequisites && !hasPrerequisites )
-					watcher.PrerequisitesAvailable(key);
+				if (nowHasPrerequisites && !hasPrerequisites)
+					watcher.PrerequisitesAvailable(Key);
 
-				if( !nowHasPrerequisites && hasPrerequisites )
-					watcher.PrerequisitesUnavailable(key);
+				if (!nowHasPrerequisites && hasPrerequisites)
+					watcher.PrerequisitesUnavailable(Key);
 
 				hasPrerequisites = nowHasPrerequisites;
 			}
@@ -131,18 +131,18 @@ namespace OpenRA.Mods.RA
 	{
 		public readonly string Prerequisite;
 
-		public object Create(ActorInitializer init) { return new ProvidesCustomPrerequisite(this);}
+		public object Create(ActorInitializer init) { return new ProvidesCustomPrerequisite(this); }
 	}
 
 	public class ProvidesCustomPrerequisite : ITechTreePrerequisite
 	{
-		ProvidesCustomPrerequisiteInfo Info;
+		ProvidesCustomPrerequisiteInfo info;
 
-		public IEnumerable<string> ProvidesPrerequisites { get { yield return Info.Prerequisite; } }
+		public IEnumerable<string> ProvidesPrerequisites { get { yield return info.Prerequisite; } }
 
 		public ProvidesCustomPrerequisite(ProvidesCustomPrerequisiteInfo info)
 		{
-			Info = info;
+			this.info = info;
 		}
 	}
 }