diff --git a/openbook_notifications/notifications.py b/openbook_notifications/notifications.py
index ed4d651114ecf2194e91383be8e5f76f82b8482c..423e6f00ba9eb2d28fdeaea28129462e3280a2ae 100644
--- a/openbook_notifications/notifications.py
+++ b/openbook_notifications/notifications.py
@@ -107,7 +107,7 @@ class Notification:
         }
 
         if email_identifier:
-            self.overrides["integrationIdentifier"] = email_identifier.value
+            self.overrides["email"] = {"integrationIdentifier": email_identifier.value}
 
     def send(self):
         if not self.recipients: