diff --git a/com/models.py b/com/models.py
index 6cdfab0e..c5a83b3f 100644
--- a/com/models.py
+++ b/com/models.py
@@ -227,7 +227,9 @@ class Weekmail(models.Model):
         """
         Return an absolute link to the banner.
         """
-        return "http://" + settings.SITH_URL + static("com/img/invitation_bannerP22.png")
+        return (
+            "http://" + settings.SITH_URL + static("com/img/invitation_bannerP22.png")
+        )
 
     def get_footer(self):
         """