diff --git a/examples/with-mobx/components/Page.js b/examples/with-mobx/components/Page.js
index 7ad9625b..d31fcf44 100644
--- a/examples/with-mobx/components/Page.js
+++ b/examples/with-mobx/components/Page.js
@@ -5,7 +5,6 @@ import Clock from './Clock'
 
 @inject('store') @observer
 class Page extends React.Component {
-
   componentDidMount () {
     this.props.store.start()
   }
diff --git a/lib/app.js b/lib/app.js
index 5ff93965..4af8d798 100644
--- a/lib/app.js
+++ b/lib/app.js
@@ -25,7 +25,6 @@ export default class App extends Component {
       {ErrorDebug && err ? <ErrorDebug error={err} /> : null}
     </div>
   }
-
 }
 
 class Container extends Component {
diff --git a/server/build/plugins/watch-pages-plugin.js b/server/build/plugins/watch-pages-plugin.js
index 7cf064d4..c258c329 100644
--- a/server/build/plugins/watch-pages-plugin.js
+++ b/server/build/plugins/watch-pages-plugin.js
@@ -25,4 +25,3 @@ export default class WatchPagesPlugin {
     })
   }
 }
-
diff --git a/test/integration/basic/pages/nav/index.js b/test/integration/basic/pages/nav/index.js
index 10466b23..40098689 100644
--- a/test/integration/basic/pages/nav/index.js
+++ b/test/integration/basic/pages/nav/index.js
@@ -8,7 +8,6 @@ const linkStyle = {
 }
 
 export default class extends Component {
-
   increase () {
     counter++
     this.forceUpdate()