diff --git a/src/registrar/models/domain_request.py b/src/registrar/models/domain_request.py
index 546ccf0dd..12346c43e 100644
--- a/src/registrar/models/domain_request.py
+++ b/src/registrar/models/domain_request.py
@@ -1019,7 +1019,7 @@ class DomainRequest(TimeStampedModel):
             bcc_address = settings.DEFAULT_FROM_EMAIL
 
         cc_addresses: list[str] = []
-        if self.requesting_entity_is_portfolio:
+        if self.requesting_entity_is_portfolio():
             portfolio_view_requests_users = self.portfolio.portfolio_users_with_permissions(
                 permissions=[UserPortfolioPermissionChoices.VIEW_ALL_REQUESTS]
             )