diff --git a/modeltranslation/manager.py b/modeltranslation/manager.py
index 7cf2b18..271e839 100644
--- a/modeltranslation/manager.py
+++ b/modeltranslation/manager.py
@@ -525,7 +525,7 @@ else:
                 # Django >=1.8
                 fields += tuple(f for f in self.annotation_names if f not in fields)
             for row in super(FallbackValuesListQuerySet, self).iterator():
-                if self.flat and len(fields) == 1:
+                if self.flat and len(self.original_fields) == 1:
                     yield row[fields[0]]
                 else:
                     yield tuple(row[f] for f in fields)
diff --git a/modeltranslation/tests/tests.py b/modeltranslation/tests/tests.py
index 920f24b..0533858 100644
--- a/modeltranslation/tests/tests.py
+++ b/modeltranslation/tests/tests.py
@@ -2608,6 +2608,10 @@ class TestManager(ModeltranslationTestBase):
              'description': None, 'description_en': None, 'description_de': None},
         ])
 
+        # annotation issue (#374)
+        self.assertEqual(list(manager.values_list('title', flat=True).annotate(Count('title'))),
+                         ['en'])
+
     def test_values_list_annotation(self):
         models.TestModel(title='foo').save()
         models.TestModel(title='foo').save()