diff --git a/src/router.js b/src/router.js
index a6b8525..fe60225 100644
--- a/src/router.js
+++ b/src/router.js
@@ -12,7 +12,7 @@ low.mixin({ createId: utils.createId })
 module.exports = function(source) {
   // Create router
   var router = express.Router()
-  
+
   // Add middlewares
   router.use(bodyParser.json({limit: '10mb'}))
   router.use(bodyParser.urlencoded({ extended: false }))
@@ -41,6 +41,11 @@ module.exports = function(source) {
   // GET /*?*&_end=
   // GET /*?*&_start=&_end=
   function list(req, res, next) {
+    // Test if resource exists
+    if (!db.object.hasOwnProperty(req.params.resource)) {
+      return res.sendStatus(404)
+    }
+
     // Filters list
     var filters = {}
 
diff --git a/test/index.js b/test/index.js
index ce6b882..aa8c487 100644
--- a/test/index.js
+++ b/test/index.js
@@ -59,6 +59,12 @@ describe('Server', function() {
         .expect(db.posts)
         .expect(200, done)
     })
+
+    it('should respond with 404 if resource is not found', function(done) {
+      request(server)
+        .get('/undefined')
+        .expect(404, done)
+    })
   })
 
   describe('GET /:resource?attr=&attr=', function() {