diff --git a/modules/inbound_email/ir.py b/modules/inbound_email/ir.py
index a04140e834..91e444380d 100644
--- a/modules/inbound_email/ir.py
+++ b/modules/inbound_email/ir.py
@@ -53,7 +53,7 @@ class Channel(metaclass=PoolMeta):
                 body.splitlines()))
 
     @classmethod
-    def post_inbound_email(cls, inbound_email):
+    def post_inbound_email(cls, inbound_email, rule):
         parser = email.parser.BytesParser(policy=email.policy.default)
         message = parser.parsebytes(inbound_email.data)
         return cls.post_from_email(message)