diff --git a/scripts/blt/ignore-existing.txt b/scripts/blt/ignore-existing.txt
index 9646aa7c7..1fce3b688 100644
--- a/scripts/blt/ignore-existing.txt
+++ b/scripts/blt/ignore-existing.txt
@@ -7,6 +7,7 @@ composer.lock
 README.md
 drush/site-aliases/aliases.drushrc.php
 docroot/sites/default/services.yml
+docroot/sites/default/settings/trusted_host.settings.php
 factory-hooks/pre-settings-php/includes.php
 tests/behat/behat.yml
 tests/behat/example.local.yml