diff --git a/extensions/drive-menu/extension.js b/extensions/drive-menu/extension.js
index 6a15de4e..879702a0 100644
--- a/extensions/drive-menu/extension.js
+++ b/extensions/drive-menu/extension.js
@@ -69,7 +69,7 @@ class MountMenuItem extends PopupMenu.PopupBaseMenuItem {
     _eject() {
         let unmountArgs = [
             Gio.MountUnmountFlags.NONE,
-            (new ShellMountOperation.ShellMountOperation(this.mount)).mountOp,
+            new ShellMountOperation.ShellMountOperation(this.mount).mountOp,
             null, // Gio.Cancellable
         ];
 
diff --git a/extensions/places-menu/placeDisplay.js b/extensions/places-menu/placeDisplay.js
index 201452f9..3d3b516e 100644
--- a/extensions/places-menu/placeDisplay.js
+++ b/extensions/places-menu/placeDisplay.js
@@ -200,7 +200,7 @@ class PlaceDeviceInfo extends PlaceInfo {
     eject() {
         let unmountArgs = [
             Gio.MountUnmountFlags.NONE,
-            (new ShellMountOperation.ShellMountOperation(this._mount)).mountOp,
+            new ShellMountOperation.ShellMountOperation(this._mount).mountOp,
             null, // Gio.Cancellable
         ];