diff --git a/web/main/models.py b/web/main/models.py
index 22f4f31b3..f5d030a2a 100644
--- a/web/main/models.py
+++ b/web/main/models.py
@@ -3474,7 +3474,10 @@ def inc_export_fails(self):
         orig = self.export_fails
         Casebook.objects.filter(id=self.id).update(export_fails=F("export_fails") + 1)
         self.refresh_from_db()
-        if orig < settings.MAX_EXPORT_ATTEMPTS and self.export_fails >= settings.MAX_EXPORT_ATTEMPTS:
+        if (
+            orig < settings.MAX_EXPORT_ATTEMPTS
+            and self.export_fails >= settings.MAX_EXPORT_ATTEMPTS
+        ):
             message = f"Export of casebook {self.id} ({self.title}) has failed the maximum allowed times.\n\nPlease investigate, and reset to zero if the failures were spurious."
             send_mail(
                 f"Export of H2O Casebook {self.id} is frozen.",