diff --git a/lib/auth_middleware.js b/lib/auth_middleware.js
index 6f7e32b..08fbf9d 100644
--- a/lib/auth_middleware.js
+++ b/lib/auth_middleware.js
@@ -81,7 +81,7 @@ module.exports = function(optionsOrStrategy) {
           middlewareCallback= scope;
           scope= undefined;
         }
-        RequestMethods.logout.call( this, {scope:scope, request:req, response:res}, logoutHandler, function() {
+        RequestMethods.logout.call( this, {scope:scope, request:req, response:res}, logoutHandler, function(err) {
           //Clear out the saved auth details
           //TODO: this should be scope-aware.
           createAuthDetails( req );
@@ -90,7 +90,7 @@ module.exports = function(optionsOrStrategy) {
             traceFunction( message, {scope:scope, request:req, response:res}, linePrefix );
           };
           
-          if( middlewareCallback) middlewareCallback();
+          if( middlewareCallback) middlewareCallback(err);
         })
       };
 
diff --git a/lib/requestMethods.js b/lib/requestMethods.js
index 478c810..492fb1e 100644
--- a/lib/requestMethods.js
+++ b/lib/requestMethods.js
@@ -1,3 +1,4 @@
+
 /*!
  * Copyright(c) 2010 Ciaran Jessup <ciaranj@gmai.com>
  * MIT Licensed
@@ -155,17 +156,21 @@ module.exports.isUnAuthenticated= function(scope) {
 };
 
 module.exports.logout= function( authContext, logoutHandler, middlewareCallback ) {
-   var ad= this.getAuthDetails();
-   ad.trace( "Logout", authContext.scope, "!!!" );
-   var user;
-   if( authContext.scope === undefined) {
-     user= ad.user;
-     delete ad.user;
-     ad.scopedUsers= {};
-   }
-   else {
-     user= ad.scopedUsers[authContext.scope].user;
-     delete ad.scopedUsers[authContext.scope].user;
-   }
-   logoutHandler( authContext, user, middlewareCallback );
+  var user, err;
+  var ad= this.getAuthDetails();
+  ad.trace( "Logout", authContext.scope, "!!!" );
+  if( authContext.scope === undefined) {
+    user= ad.user;
+    delete ad.user;
+    ad.scopedUsers= {};
+  }
+  else {
+    try {
+      user= ad.scopedUsers[authContext.scope].user;
+      delete ad.scopedUsers[authContext.scope].user;
+    } catch(error){
+      err= new Error('There are no user credentials associated with the scope: "' +  authContext.scope + '"');
+    }
+  }
+  logoutHandler( authContext, user, middlewareCallback(err));
 };
\ No newline at end of file