diff --git a/src/paperless_mail/mail.py b/src/paperless_mail/mail.py
index b051b94ea..327731a84 100644
--- a/src/paperless_mail/mail.py
+++ b/src/paperless_mail/mail.py
@@ -77,7 +77,7 @@ def make_criterias(rule):
     maximum_age = date.today() - timedelta(days=rule.maximum_age)
     criterias = {}
     if rule.maximum_age > 0:
-        criterias["date_gte"] = maximum_age    
+        criterias["date_gte"] = maximum_age
     if rule.filter_from:
         criterias["from_"] = rule.filter_from
     if rule.filter_subject: