diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000..58c5dbe
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1,7 @@
+.vscode/
+src/
+test/
+.babelrc
+.editorconfig
+.travis.yml
+gulpfile.js
diff --git a/dist/vue-jsonp.umd.js b/dist/vue-jsonp.umd.js
index 860f3db..8bec04d 100644
--- a/dist/vue-jsonp.umd.js
+++ b/dist/vue-jsonp.umd.js
@@ -4,7 +4,7 @@
   } else if (typeof exports === 'object') {
     module.exports = factory();
   } else {
-    root.Index = factory();
+    root.vueJsonp = factory();
   }
 }(this, function() {
 /**
diff --git a/gulpfile.js b/gulpfile.js
index 608ddec..5ff3633 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -43,8 +43,13 @@ gulp.task('js:build', () => {
 gulp.task('js:umd', (file) => {
   gulp.src(ENTRY)
     .pipe(umd({
-      exports: function (file) { return 'vueJsonp' }
+      exports (file) {
+        return 'vueJsonp'
+      },
+      namespace (file) {
+        return 'vueJsonp'
+      }
     }))
     .pipe(rename('vue-jsonp.umd.js'))
     .pipe(gulp.dest(`${ROOTPATH}/dist`))
-})
\ No newline at end of file
+})
diff --git a/package.json b/package.json
index a1bfb69..c655281 100644
--- a/package.json
+++ b/package.json
@@ -8,8 +8,10 @@
     "JSONP"
   ],
   "scripts": {
-    "build": "gulp",
+    "predev": "gulp",
     "pretest": "gulp",
+    "dev": "karma start ./test/karma.conf.js",
+    "build": "gulp",
     "test": "karma start ./test/karma.conf.js --single-run"
   },
   "author": {
diff --git a/test/index.js b/test/index.js
index 13c6704..b2a14a4 100644
--- a/test/index.js
+++ b/test/index.js
@@ -1,7 +1,5 @@
-// Polyfill fn.bind() for PhantomJS
 /* eslint-disable no-extend-native */
 Function.prototype.bind = require('function-bind')
 
-// require all test files (files that ends with .spec.js)
 require('./specs/format-params.spec.js')
 require('./specs/vue-jsonp.spec.js')
diff --git a/test/specs/format-params.spec.js b/test/specs/format-params.spec.js
index cee2b70..74fe9a0 100644
--- a/test/specs/format-params.spec.js
+++ b/test/specs/format-params.spec.js
@@ -38,6 +38,23 @@ describe('Param format testing.', function () {
 
     expect(decodeURIComponent(result)).equal(expected)
   })
+
+  it('Should format params correctly - from issue.', function () {
+    var self = {
+      email: 'mail@hotmail.com',
+      first_name: 'FirstName',
+      last_name: 'LastName'
+    }
+
+    var result = createQueryStr({
+      'EMAIL': self.email,
+      'FNAME': self.first_name,
+      'LNAME': self.last_name
+    })
+
+    var expected = 'EMAIL=' + self.email + '&FNAME=' + self.first_name + '&LNAME=' + self.last_name
+    expect(decodeURIComponent(result)).equal(expected)
+  })
 })
 
 function createQueryStr (param) {