diff --git a/zerver/lib/slack_data_to_zulip_data.py b/zerver/lib/slack_data_to_zulip_data.py
index 8a00681bb5..a01a86813a 100755
--- a/zerver/lib/slack_data_to_zulip_data.py
+++ b/zerver/lib/slack_data_to_zulip_data.py
@@ -205,6 +205,7 @@ def users_to_zerver_userprofile(slack_data_dir: str, users: List[ZerverFieldsT],
             enable_digest_emails=True,
             last_pointer_updater="",
             email=email,
+            realm_name_in_notifications=False,
             date_joined=timestamp,
             last_reminder=timestamp,
             is_superuser=False,