diff --git a/src/calibre/ebooks/metadata/sources/ozon.py b/src/calibre/ebooks/metadata/sources/ozon.py
index c314a29936..11f09e166a 100644
--- a/src/calibre/ebooks/metadata/sources/ozon.py
+++ b/src/calibre/ebooks/metadata/sources/ozon.py
@@ -20,7 +20,7 @@ class Ozon(Source):
     capabilities = frozenset(['identify', 'cover'])
 
     touched_fields = frozenset(['title', 'authors', 'identifier:isbn', 'identifier:ozon',
-                               'publisher', 'pubdate', 'comments', 'series', 'rating', 'language'])
+                               'publisher', 'pubdate', 'comments', 'series', 'rating', 'languages'])
     # Test purpose only, test function does not like when sometimes some filed are empty
     # touched_fields = frozenset(['title', 'authors', 'identifier:isbn', 'identifier:ozon',
     #                          'publisher', 'pubdate', 'comments'])
diff --git a/src/calibre/gui2/preferences/metadata_sources.py b/src/calibre/gui2/preferences/metadata_sources.py
index b71c7f957c..5c4a7decd0 100644
--- a/src/calibre/gui2/preferences/metadata_sources.py
+++ b/src/calibre/gui2/preferences/metadata_sources.py
@@ -162,7 +162,9 @@ class FieldsModel(QAbstractListModel):  # {{{
                 'languages': _('Languages'),
         }
         self.overrides = {}
-        self.exclude = frozenset(['series_index'])
+        self.exclude = frozenset([
+            'series_index', 'language'  # some plugins use language instead of languages
+        ])
 
     def rowCount(self, parent=None):
         return len(self.fields)