diff --git a/core/serializers/tutor.py b/core/serializers/tutor.py
index 6c7e116dd82a2961c32d7bf262c0bf26bbc26db0..b2eff1e8829433b1806e14b00cbece143231f5e4 100644
--- a/core/serializers/tutor.py
+++ b/core/serializers/tutor.py
@@ -60,4 +60,4 @@ class CorrectorSerializer(DynamicFieldsModelSerializer):
                   'feedback_created',
                   'feedback_validated',
                   'exercise_groups',
-                  'role')
\ No newline at end of file
+                  'role')