diff --git a/src/calibre/gui2/actions/delete.py b/src/calibre/gui2/actions/delete.py
index 12bd2695c4..ce22fcd108 100644
--- a/src/calibre/gui2/actions/delete.py
+++ b/src/calibre/gui2/actions/delete.py
@@ -274,8 +274,8 @@ class DeleteAction(InterfaceAction):
         to_delete = {}
         some_to_delete = False
         for model,name in ((self.gui.memory_view.model(), _('Main memory')),
-                           (self.gui.card_a_view.model(), _('Storage Card A')),
-                           (self.gui.card_b_view.model(), _('Storage Card B'))):
+                           (self.gui.card_a_view.model(), _('Storage card A')),
+                           (self.gui.card_b_view.model(), _('Storage card B'))):
             to_delete[name] = (model, model.paths_for_db_ids(ids))
             if len(to_delete[name][1]) > 0:
                 some_to_delete = True
diff --git a/src/calibre/gui2/device.py b/src/calibre/gui2/device.py
index 6ba9709c1b..9ed18d5a84 100644
--- a/src/calibre/gui2/device.py
+++ b/src/calibre/gui2/device.py
@@ -742,20 +742,20 @@ class DeviceMenu(QMenu):  # {{{
 
         delete_actions = [
                 ('main:', True, False,   I('reader.png'),
-                    _('Main Memory')),
+                    _('Main memory')),
                 ('carda:0', True, False,  I('sd.png'),
-                    _('Storage Card A')),
+                    _('Storage card A')),
                 ('cardb:0', True, False,  I('sd.png'),
-                    _('Storage Card B')),
+                    _('Storage card B')),
         ]
 
         specific_actions = [
                 ('main:', False, True,  I('reader.png'),
-                    _('Main Memory')),
+                    _('Main memory')),
                 ('carda:0', False, True, I('sd.png'),
-                    _('Storage Card A')),
+                    _('Storage card A')),
                 ('cardb:0', False, True, I('sd.png'),
-                    _('Storage Card B')),
+                    _('Storage card B')),
         ]
 
         later_menus = []