diff --git a/smash/web/models/worker_study_role.py b/smash/web/models/worker_study_role.py
index b32b40fb856d088eb1d8c09444e17a1f07857011..e4e2afc8cd85bc3e4a947e1d94fde1d3b860f1ec 100644
--- a/smash/web/models/worker_study_role.py
+++ b/smash/web/models/worker_study_role.py
@@ -45,7 +45,7 @@ class WorkerStudyRole(models.Model):
         app_label = 'web'
 
     worker = models.ForeignKey("web.Worker",
-                               related_name="roles", 
+                               related_name="roles",
                                on_delete=models.CASCADE
                                )