diff --git a/greenmine/base/utils/slug.py b/greenmine/base/utils/slug.py
index 877649d7..71b594a6 100644
--- a/greenmine/base/utils/slug.py
+++ b/greenmine/base/utils/slug.py
@@ -29,7 +29,6 @@ def ref_uniquely(p, seq_field,  model, field='ref'):
     Returns a unique reference code based on base64 and time.
     """
     project = p.__class__.objects.select_for_update().get(pk=p.pk)
-
     ref = getattr(project, seq_field) + 1
 
     while True: