diff --git a/OpenSim/Services/AuthenticationService/WebkeyOrPasswordAuthenticationService.cs b/OpenSim/Services/AuthenticationService/WebkeyOrPasswordAuthenticationService.cs
index 15dc5be554..bcfd03dd49 100644
--- a/OpenSim/Services/AuthenticationService/WebkeyOrPasswordAuthenticationService.cs
+++ b/OpenSim/Services/AuthenticationService/WebkeyOrPasswordAuthenticationService.cs
@@ -15,8 +15,11 @@ namespace OpenSim.Services.AuthenticationService
     public class WebkeyOrPasswordAuthenticationService : AuthenticationServiceBase, IAuthenticationService
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+        
         private IConfigSource config;
-        private Dictionary<string, IAuthenticationService> svc_checks;
+        private Dictionary<string, IAuthenticationService> svc_checks 
+            = new Dictionary<string, IAuthenticationService>();
+        
         public WebkeyOrPasswordAuthenticationService(IConfigSource config)
             : base(config)
         {
diff --git a/prebuild.xml b/prebuild.xml
index fac3f208af..c818908d80 100644
--- a/prebuild.xml
+++ b/prebuild.xml
@@ -1059,6 +1059,7 @@
       <Reference name="OpenSim.Framework"/>
       <Reference name="OpenSim.Framework.Console"/>
       <Reference name="OpenSim.Framework.Servers.HttpServer"/>
+      <Reference name="OpenSim.Server.Base"/>
       <Reference name="OpenSim.Services.Interfaces"/>
       <Reference name="OpenSim.Services.Base"/>
       <Reference name="OpenSim.Services.Connectors"/>