diff --git a/js/ui/dialog.js b/js/ui/dialog.js
index 3901e0629..c2d2e04b6 100644
--- a/js/ui/dialog.js
+++ b/js/ui/dialog.js
@@ -25,10 +25,12 @@ class Dialog extends St.Widget {
     }
 
     _createDialog() {
-        this._dialog = new St.BoxLayout({ style_class: 'modal-dialog',
-                                          x_align: Clutter.ActorAlign.CENTER,
-                                          y_align: Clutter.ActorAlign.CENTER,
-                                          vertical: true });
+        this._dialog = new St.BoxLayout({
+            style_class: 'modal-dialog',
+            x_align: Clutter.ActorAlign.CENTER,
+            y_align: Clutter.ActorAlign.CENTER,
+            vertical: true,
+        });
 
         // modal dialogs are fixed width and grow vertically; set the request
         // mode accordingly so wrapped labels are handled correctly during
@@ -43,7 +45,9 @@ class Dialog extends St.Widget {
         });
         this._dialog.add_child(this.contentLayout);
 
-        this.buttonLayout = new St.Widget({ layout_manager: new Clutter.BoxLayout({ homogeneous: true }) });
+        this.buttonLayout = new St.Widget({
+            layout_manager: new Clutter.BoxLayout({ homogeneous: true }),
+        });
         this._dialog.add_child(this.buttonLayout);
     }
 
@@ -111,13 +115,15 @@ class Dialog extends St.Widget {
         else
             keys = [];
 
-        let button = new St.Button({ style_class: 'modal-dialog-linked-button',
-                                     button_mask: St.ButtonMask.ONE | St.ButtonMask.THREE,
-                                     reactive: true,
-                                     can_focus: true,
-                                     x_expand: true,
-                                     y_expand: true,
-                                     label });
+        let button = new St.Button({
+            style_class: 'modal-dialog-linked-button',
+            button_mask: St.ButtonMask.ONE | St.ButtonMask.THREE,
+            reactive: true,
+            can_focus: true,
+            x_expand: true,
+            y_expand: true,
+            label,
+        });
         button.connect('clicked', action);
 
         buttonInfo['button'] = button;
@@ -144,22 +150,26 @@ class Dialog extends St.Widget {
 
 var MessageDialogContent = GObject.registerClass({
     Properties: {
-        'icon': GObject.ParamSpec.object('icon', 'icon', 'icon',
-                                         GObject.ParamFlags.READWRITE |
-                                         GObject.ParamFlags.CONSTRUCT,
-                                         Gio.Icon.$gtype),
-        'title': GObject.ParamSpec.string('title', 'title', 'title',
-                                          GObject.ParamFlags.READWRITE |
-                                          GObject.ParamFlags.CONSTRUCT,
-                                          null),
-        'subtitle': GObject.ParamSpec.string('subtitle', 'subtitle', 'subtitle',
-                                             GObject.ParamFlags.READWRITE |
-                                             GObject.ParamFlags.CONSTRUCT,
-                                             null),
-        'body': GObject.ParamSpec.string('body', 'body', 'body',
-                                         GObject.ParamFlags.READWRITE |
-                                         GObject.ParamFlags.CONSTRUCT,
-                                         null),
+        'icon': GObject.ParamSpec.object(
+            'icon', 'icon', 'icon',
+            GObject.ParamFlags.READWRITE |
+            GObject.ParamFlags.CONSTRUCT,
+            Gio.Icon.$gtype),
+        'title': GObject.ParamSpec.string(
+            'title', 'title', 'title',
+            GObject.ParamFlags.READWRITE |
+            GObject.ParamFlags.CONSTRUCT,
+            null),
+        'subtitle': GObject.ParamSpec.string(
+            'subtitle', 'subtitle', 'subtitle',
+            GObject.ParamFlags.READWRITE |
+            GObject.ParamFlags.CONSTRUCT,
+            null),
+        'body': GObject.ParamSpec.string(
+            'body', 'body', 'body',
+            GObject.ParamFlags.READWRITE |
+            GObject.ParamFlags.CONSTRUCT,
+            null),
     },
 }, class MessageDialogContent extends St.BoxLayout {
     _init(params) {
@@ -172,18 +182,21 @@ var MessageDialogContent = GObject.registerClass({
             this[`_${prop}`].add_style_class_name(`message-dialog-${prop}`);
         });
 
-        let textProps = { ellipsize: Pango.EllipsizeMode.NONE,
-                          line_wrap: true };
+        let textProps = {
+            ellipsize: Pango.EllipsizeMode.NONE,
+            line_wrap: true,
+        };
         this._subtitle.clutter_text.set(textProps);
         this._body.clutter_text.set(textProps);
 
         let defaultParams = { style_class: 'message-dialog-main-layout' };
         super._init(Object.assign(defaultParams, params));
 
-        this.messageBox = new St.BoxLayout({ style_class: 'message-dialog-content',
-                                             x_expand: true,
-                                             vertical: true });
-
+        this.messageBox = new St.BoxLayout({
+            style_class: 'message-dialog-content',
+            x_expand: true,
+            vertical: true,
+        });
         this.messageBox.add_actor(this._title);
         this.messageBox.add_actor(this._subtitle);
         this.messageBox.add_actor(this._body);