diff --git a/lib/passport-http/strategies/digest.js b/lib/passport-http/strategies/digest.js
index 1984d89..0b88251 100644
--- a/lib/passport-http/strategies/digest.js
+++ b/lib/passport-http/strategies/digest.js
@@ -112,7 +112,9 @@ DigestStrategy.prototype.authenticate = function(req) {
   if (!creds.username) {
     return this.fail(this._challenge());
   }
-  if (req.url !== creds.uri) {
+
+  var url = req.originalUrl || req.url;
+  if (url !== creds.uri) {
     return this.fail(400);
   }
   
diff --git a/test/strategies/digest-test.js b/test/strategies/digest-test.js
index 28115ec..61abc7b 100644
--- a/test/strategies/digest-test.js
+++ b/test/strategies/digest-test.js
@@ -921,6 +921,49 @@ vows.describe('DigestStrategy').addBatch({
     },
   },
   
+  'strategy handling a request for endpoint mounted with `app.use` at a different route': {
+    topic: function() {
+      var strategy = new DigestStrategy(
+        function(username, done) {
+          done(null, { username: username }, 'secret');
+        },
+        function(options, done) {
+          done(null, true);
+        }
+      );
+      return strategy;
+    },
+    
+    'after augmenting with actions': {
+      topic: function(strategy) {
+        var self = this;
+        var req = {};
+        strategy.success = function(user) {
+          self.callback(null, user);
+        }
+        strategy.fail = function() {
+          self.callback(new Error('should not be called'));
+        }
+        
+        req.url = '/login';
+        req.originalUrl = '/auth/login';
+        req.method = 'HEAD';
+        req.headers = {};
+        req.headers.authorization = 'Digest username="bob", realm="Users", nonce="NOIEDJ3hJtqSKaty8KF8xlkaYbItAkiS", uri="/auth/login", response="966fae1f81aa1bb0e413e0e832e647c0"';
+        process.nextTick(function () {
+          strategy.authenticate(req);
+        });
+      },
+      
+      'should not generate an error' : function(err, user) {
+        assert.isNull(err);
+      },
+      'should authenticate' : function(err, user) {
+        assert.equal(user.username, 'bob');
+      },
+    },
+  },
+  
   'strategy handling a request with unknown algorithm': {
     topic: function() {
       var strategy = new DigestStrategy({ algorithm: 'MD5' },