diff --git a/lms/djangoapps/instructor/views/serializer.py b/lms/djangoapps/instructor/views/serializer.py
index 5a662d7decfc..7b20eed32f60 100644
--- a/lms/djangoapps/instructor/views/serializer.py
+++ b/lms/djangoapps/instructor/views/serializer.py
@@ -303,7 +303,7 @@ def _split_input_list(str_list):
     return new_list
 
 
- class CertificateStatusesSerializer(serializers.Serializer):
+class CertificateStatusesSerializer(serializers.Serializer):
     """
     Serializer for validating and serializing certificate status inputs.