diff --git a/src/calibre/gui2/tweak_book/ui.py b/src/calibre/gui2/tweak_book/ui.py
index 0ce8f2f59c..149e58a537 100644
--- a/src/calibre/gui2/tweak_book/ui.py
+++ b/src/calibre/gui2/tweak_book/ui.py
@@ -512,7 +512,7 @@ class Main(MainWindow):
             'window-close.png', _('&Close current tab'), self.central.close_current_editor, 'close-current-tab', 'Ctrl+W', _(
                 'Close the currently open tab'))
         self.action_close_all_but_current_tab = reg(
-            'edit-clear.png', _('&Close other tabs'), self.central.close_all_but_current_editor, 'close-all-but-current-tab', 'Ctrl+Alt+W', _(
+            'edit-clear.png', _('C&lose other tabs'), self.central.close_all_but_current_editor, 'close-all-but-current-tab', 'Ctrl+Alt+W', _(
                 'Close all tabs except the current tab'))
         self.action_help = treg(
             'help.png', _('User &Manual'), lambda : open_url(QUrl(localize_user_manual_link(
diff --git a/src/pyj/read_book/overlay.pyj b/src/pyj/read_book/overlay.pyj
index 0de46604c5..8d9000715b 100644
--- a/src/pyj/read_book/overlay.pyj
+++ b/src/pyj/read_book/overlay.pyj
@@ -281,7 +281,7 @@ class MainOverlay:  # {{{
 
             E.ul(
                 ac(_('Font size'), _('Change text size'), self.overlay.show_font_size_chooser, 'Aa', True),
-                ac(_('Preferences'), _('Configure the book reader'), self.overlay.show_prefs, 'cogs'),
+                ac(_('Preferences'), _('Configure the book viewer'), self.overlay.show_prefs, 'cogs'),
             ),
 
             class_=MAIN_OVERLAY_ACTIONS_CLASS