diff --git a/src/calibre/ebooks/lrf/html/convert_from.py b/src/calibre/ebooks/lrf/html/convert_from.py
index 478a597010..53d1a20fa4 100644
--- a/src/calibre/ebooks/lrf/html/convert_from.py
+++ b/src/calibre/ebooks/lrf/html/convert_from.py
@@ -603,7 +603,7 @@ class HTMLConverter(object):
                hasattr(target.parent, 'objId'):
                 self.book.addTocEntry(ascii_text, tb)
             else:
-                self.log.debug(_("Cannot add link %s to TOC")%ascii_text)
+                self.log.debug("Cannot add link %s to TOC"%ascii_text)
 
         def get_target_block(fragment, targets):
             '''Return the correct block for the <a name> element'''
diff --git a/src/calibre/gui2/tweak_book/preferences.py b/src/calibre/gui2/tweak_book/preferences.py
index efb762d604..2a2bb3f4ab 100644
--- a/src/calibre/gui2/tweak_book/preferences.py
+++ b/src/calibre/gui2/tweak_book/preferences.py
@@ -427,10 +427,10 @@ class ToolbarSettings(QWidget):
         gl2.addWidget(self.ub, 0, 1), gl2.addWidget(self.db, 2, 1)
         gb2.setLayout(gl2)
         self.lb = b = QToolButton(self)
-        b.setToolTip(_('Add selected actions to toolbar')), b.setIcon(QIcon(I('forward.png')))
+        b.setToolTip(_('Add selected actions to the toolbar')), b.setIcon(QIcon(I('forward.png')))
         l.addWidget(b, 1, 1), b.clicked.connect(self.add_action)
         self.rb = b = QToolButton(self)
-        b.setToolTip(_('Remove selected actions from toolbar')), b.setIcon(QIcon(I('back.png')))
+        b.setToolTip(_('Remove selected actions from the toolbar')), b.setIcon(QIcon(I('back.png')))
         l.addWidget(b, 3, 1), b.clicked.connect(self.remove_action)
         self.si = QSpacerItem(20, 10, hPolicy=QSizePolicy.Preferred, vPolicy=QSizePolicy.Expanding)
         l.setRowStretch(0, 10), l.setRowStretch(2, 10), l.setRowStretch(4, 10)