diff --git a/lib/protos.js b/lib/protos.js
index c339c47..3dad067 100644
--- a/lib/protos.js
+++ b/lib/protos.js
@@ -304,7 +304,8 @@ exports.locals = function(locals) {
  * @api public
  */
 
-exports.ready = function() {
+exports.ready = function(err) {
+  if (err) return this.debug('error loading "%s" error="%s"', this.name, err);
   this.emit('ready');
 };
 
diff --git a/test/index.test.js b/test/index.test.js
index 44d93d0..fd310ac 100644
--- a/test/index.test.js
+++ b/test/index.test.js
@@ -633,4 +633,28 @@ describe('integration', function() {
       assert(window.onload === onload);
     });
   });
+
+  describe('#ready', function() {
+    beforeEach(function() {
+      integration = new Integration();
+    });
+
+    it('should should emit a ready event', function() {
+      var called = false;
+      integration.on('ready', function() {
+        called = true;
+      });
+      integration.ready();
+      assert(called === true);
+    });
+
+    it('should should not emit a ready event if the integration fails', function() {
+      var called = false;
+      integration.on('ready', function() {
+        called = true;
+      });
+      integration.ready(new Error('failed to load'));
+      assert(called === false);
+    });
+  });
 });