diff --git a/packages/mainmenu-extension/src/index.ts b/packages/mainmenu-extension/src/index.ts
index 5bf779bfa428..e2bb87728aff 100644
--- a/packages/mainmenu-extension/src/index.ts
+++ b/packages/mainmenu-extension/src/index.ts
@@ -349,11 +349,11 @@ export function createFileMenu(
 
   commands.addCommand(CommandIDs.shutdown, {
     label: 'Shutdown',
-    caption: 'Shutdown JupyterLab',
+    caption: 'Shut down JupyterLab',
     execute: () => {
       return showDialog({
-        title: 'Shutdown confirmation',
-        body: 'Please confirm you want to quit JupyterLab.',
+        title: 'Shut down confirmation',
+        body: 'Please confirm you want to shut down JupyterLab.',
         buttons: [Dialog.cancelButton(), Dialog.warnButton({ label: 'Quit' })]
       }).then(result => {
         if (result.button.accept) {
@@ -390,7 +390,7 @@ export function createFileMenu(
 
   commands.addCommand(CommandIDs.logout, {
     label: 'Logout',
-    caption: 'Logout of JupyterLab',
+    caption: 'Log out of JupyterLab',
     execute: () => {
       router.navigate('/logout', { hard: true });
     }