diff --git a/src/calibre/ebooks/metadata/sources/big_book_search.py b/src/calibre/ebooks/metadata/sources/big_book_search.py
index 6e294b589a..53b8a23ceb 100644
--- a/src/calibre/ebooks/metadata/sources/big_book_search.py
+++ b/src/calibre/ebooks/metadata/sources/big_book_search.py
@@ -34,7 +34,6 @@ class BigBookSearch(Source):
     minimum_calibre_version = (2, 80, 0)
     description = _('Downloads multiple book covers from Amazon. Useful to find alternate covers.')
     capabilities = frozenset(['cover'])
-    config_help_message = _('Configure the Big Book Search plugin')
     can_get_multiple_covers = True
     options = (Option('max_covers', 'number', 5, _('Maximum number of covers to get'),
                       _('The maximum number of covers to process from the search result')),
diff --git a/src/calibre/ebooks/metadata/sources/google_images.py b/src/calibre/ebooks/metadata/sources/google_images.py
index 9e9f2b2032..1903fd6ec3 100644
--- a/src/calibre/ebooks/metadata/sources/google_images.py
+++ b/src/calibre/ebooks/metadata/sources/google_images.py
@@ -21,7 +21,6 @@ class GoogleImages(Source):
     minimum_calibre_version = (2, 80, 0)
     description = _('Downloads covers from a Google Image search. Useful to find larger/alternate covers.')
     capabilities = frozenset(['cover'])
-    config_help_message = _('Configure the Google Image Search plugin')
     can_get_multiple_covers = True
     supports_gzip_transfer_encoding = True
     options = (Option('max_covers', 'number', 5, _('Maximum number of covers to get'),