diff --git a/.gitignore b/.gitignore
index c8dbc41..0d7133a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,8 +9,10 @@
 .env
 .env.*
 !.env.example
-/config/system/settings.php
-/config/system/additional.php
+# The whole directory, not just the two known files: editor backups like
+# additional.php.save would otherwise slip into a careless `git add -A`
+# (settings.php holds credentials).
+/config/system/
 auth.json
 
 # --------------------------------------------------