diff --git a/app/lib/admin/actions/send_email.dart b/app/lib/admin/actions/send_email.dart
index 03c6983a1c..3629e89833 100644
--- a/app/lib/admin/actions/send_email.dart
+++ b/app/lib/admin/actions/send_email.dart
@@ -67,17 +67,17 @@ without changing anything in it.
           if (pkg!.publisherId != null) {
             final list =
                 await publisherBackend.getAdminMemberEmails(ms.publisherId!);
-            emails.addAll(list.whereNotNull());
+            emails.addAll(list.nonNulls);
           } else {
             final list = await accountBackend
                 .lookupUsersById(pkg.uploaders ?? const <String>[]);
-            emails.addAll(list.map((e) => e?.email).whereNotNull());
+            emails.addAll(list.map((e) => e?.email).nonNulls);
           }
           break;
         case ModerationSubjectKind.publisher:
           final list =
               await publisherBackend.getAdminMemberEmails(ms.publisherId!);
-          emails.addAll(list.whereNotNull());
+          emails.addAll(list.nonNulls);
           break;
         case ModerationSubjectKind.user:
           emails.add(ms.email!);