diff --git a/src/calibre/gui2/actions/booklist_context_menu.py b/src/calibre/gui2/actions/booklist_context_menu.py
index 01d66539e5..e69884ecb5 100644
--- a/src/calibre/gui2/actions/booklist_context_menu.py
+++ b/src/calibre/gui2/actions/booklist_context_menu.py
@@ -9,7 +9,7 @@ class BooklistContextMenuAction(InterfaceAction):
 
     name = 'Booklist context menu'
     action_spec = (_('Book list header menu'), 'context_menu.png',
-                   _('Show the book list header context menu'), '')
+                   _('Show the book list header context menu'), None)
     action_type = 'current'
     action_add_menu = False
     dont_add_to = frozenset(['context-menu-device', 'menubar-device'])
diff --git a/src/calibre/gui2/actions/saved_searches.py b/src/calibre/gui2/actions/saved_searches.py
index 365f6055ff..eb9161a432 100644
--- a/src/calibre/gui2/actions/saved_searches.py
+++ b/src/calibre/gui2/actions/saved_searches.py
@@ -13,7 +13,7 @@ class SavedSearchesAction(InterfaceAction):
 
     name = 'Saved searches'
     action_spec = (_('Saved searches'), 'folder_saved_search.png',
-                   _('Show a menu of saved searches'), '')
+                   _('Show a menu of saved searches'), None)
     action_type = 'current'
     action_add_menu = True
     dont_add_to = frozenset(('context-menu-device', 'menubar-device'))