diff --git a/src/calibre/gui2/actions/copy_to_library.py b/src/calibre/gui2/actions/copy_to_library.py
index b763c9e8a2..bc53698c5a 100644
--- a/src/calibre/gui2/actions/copy_to_library.py
+++ b/src/calibre/gui2/actions/copy_to_library.py
@@ -257,7 +257,7 @@ class ChooseLibrary(Dialog):  # {{{
 
     def browse(self):
         d = choose_dir(self, 'choose_library_for_copy',
-                       _('Choose Library'))
+                       _('Choose library'))
         if d:
             self.le.setText(d)
 
diff --git a/src/calibre/gui2/preferences/server.py b/src/calibre/gui2/preferences/server.py
index 74802ae6b2..64c02e7479 100644
--- a/src/calibre/gui2/preferences/server.py
+++ b/src/calibre/gui2/preferences/server.py
@@ -758,14 +758,20 @@ class User(QWidget):
         username, user_data = self.username, self.user_data
         r = user_data[username]['restriction']
         if r['allowed_library_names']:
-            m = _(
-                '{} is currently only allowed to access the libraries named: {}'
-            ).format(username, ', '.join(r['allowed_library_names']))
+            libs = r['allowed_library_names']
+            m = ngettext(
+                '{} is currently only allowed to access the library named: {}',
+                '{} is currently only allowed to access the libraries named: {}',
+                len(libs)
+            ).format(username, ', '.join(libs))
             b = _('Change the allowed libraries')
         elif r['blocked_library_names']:
-            m = _(
-                '{} is currently not allowed to access the libraries named: {}'
-            ).format(username, ', '.join(r['blocked_library_names']))
+            libs = r['blocked_library_names']
+            m = ngettext(
+                '{} is currently not allowed to access the library named: {}',
+                '{} is currently not allowed to access the libraries named: {}',
+                len(libs)
+            ).format(username, ', '.join(libs))
             b = _('Change the blocked libraries')
         else:
             m = _('{} is currently allowed access to all libraries')
diff --git a/src/calibre/srv/manage_users_cli.py b/src/calibre/srv/manage_users_cli.py
index d87c841738..db319232a6 100644
--- a/src/calibre/srv/manage_users_cli.py
+++ b/src/calibre/srv/manage_users_cli.py
@@ -133,13 +133,19 @@ def manage_users_cli(path=None):
         if r is None:
             raise SystemExit('The user {} does not exist'.format(username))
         if r['allowed_library_names']:
+            libs = r['allowed_library_names']
             prints(
-                _('{} is currently only allowed to access the libraries named: {}')
-                .format(username, ', '.join(r['allowed_library_names'])))
+                ngettext(
+                    '{} is currently only allowed to access the library named: {}',
+                    '{} is currently only allowed to access the libraries named: {}',
+                    len(libs)).format(username, ', '.join(libs)))
         if r['blocked_library_names']:
+            libs = r['blocked_library_names']
             prints(
-                _('{} is currently not allowed to access the libraries named: {}')
-                .format(username, ', '.join(r['blocked_library_names'])))
+                ngettext(
+                    '{} is currently not allowed to access the library named: {}',
+                    '{} is currently not allowed to access the libraries named: {}',
+                    len(libs)).format(username, ', '.join(libs)))
         if r['library_restrictions']:
             prints(
                 _('{} has the following additional per-library restrictions:')