diff --git a/lib/components/WidgetFrame.js b/lib/components/WidgetFrame.js
index ca59126..b38f27e 100644
--- a/lib/components/WidgetFrame.js
+++ b/lib/components/WidgetFrame.js
@@ -89,49 +89,49 @@ const cardTarget = {
    isDragging: monitor.isDragging(),
  }))
 class WidgetFrame extends Component {
-  render() {
-    const {
-      frameComponent,
-      children,
-      editable,
-      title,
-      frameSettings,
-      connectDragSource,
-      connectDropTarget,
-      isDragging,
-    } = this.props;
-
-    let selected = null;
-
-    if (frameComponent) {
-      // if user provided a custom frame,  use it
-      selected = createElement(frameComponent, {
-        children,
-        editable,
-        title,
-        settings: frameSettings,
-        onRemove: this.remove,
-      });
-    } else {
-      // else use the default frame
-      selected = (
-        <DefaultFrame
-          title={title}
-          editable={editable}
-          children={children}
-          onRemove={this.remove}
-        />
-      );
-    }
-    const opacity = isDragging ? 0 : 1;
-    const widgetFrame = (
-        <div style={{ opacity }}>
-            {selected}
-        </div>
-    );
-
-    return editable ? connectDragSource(connectDropTarget(widgetFrame)) : widgetFrame;
-  }
+   render() {
+     const {
+       frameComponent,
+       children,
+       editable,
+       title,
+       frameSettings,
+       connectDragSource,
+       connectDropTarget,
+       isDragging,
+     } = this.props;
+
+     let selected = null;
+
+     if (frameComponent) {
+       // if user provided a custom frame,  use it
+       selected = createElement(frameComponent, {
+         children,
+         editable,
+         title,
+         settings: frameSettings,
+         onRemove: this.remove,
+       });
+     } else {
+       // else use the default frame
+       selected = (
+         <DefaultFrame
+           title={title}
+           editable={editable}
+           children={children}
+           onRemove={this.remove}
+         />
+       );
+     }
+     const opacity = isDragging ? 0 : 1;
+     const widgetFrame = (
+       <div style={{ opacity }}>
+         {selected}
+       </div>
+     );
+
+     return editable ? connectDragSource(connectDropTarget(widgetFrame)) : widgetFrame;
+   }
 
   remove = () => {
     const { layout, rowIndex, columnIndex, widgetIndex } = this.props;
diff --git a/test/components/WidgetFrame.spec.js b/test/components/WidgetFrame.spec.js
index be8cb56..6b5bd25 100644
--- a/test/components/WidgetFrame.spec.js
+++ b/test/components/WidgetFrame.spec.js
@@ -125,13 +125,13 @@ describe('<WidgetFrame />', () => {
   });
 
   it('Customized frame should be provided with necessary props', () => {
-    let children = [];
-    let editable = false;
-    let onRemove = () => {};
-    let title = 'Widget Title';
-    let OriginalWidgetFrame = WidgetFrame.DecoratedComponent;
-    let identity = (el) => el;
-    let settings = {
+    const children = [];
+    const editable = false;
+    const onRemove = () => {};
+    const title = 'Widget Title';
+    const OriginalWidgetFrame = WidgetFrame.DecoratedComponent;
+    const identity = (el) => el;
+    const settings = {
       color: '#E140AD',
     };
     const component = mount(