diff --git a/spacy/en/__init__.py b/spacy/en/__init__.py
index 0108358ac..d63fe92a2 100644
--- a/spacy/en/__init__.py
+++ b/spacy/en/__init__.py
@@ -101,6 +101,10 @@ class English(object):
             self.entity = Entity(self.vocab.strings, path.join(data_dir, 'ner'))
         else:
             self.entity = None
+        if Serializer:
+            self.bitter = Serializer(self.vocab, data_dir)
+        else:
+            self.bitter = None
         self.mwe_merger = RegexMerger([
             ('IN', 'O', regexes.MW_PREPOSITIONS_RE),
             ('CD', 'TIME', regexes.TIME_RE),