diff --git a/src/settings/configuration.rs b/src/settings/configuration.rs
index 3ec31d3599..f4e9db7606 100644
--- a/src/settings/configuration.rs
+++ b/src/settings/configuration.rs
@@ -138,6 +138,7 @@ impl Configuration {
                     CheckCodePrefix::M,
                     CheckCodePrefix::N,
                     CheckCodePrefix::Q,
+                    CheckCodePrefix::RUF,
                     CheckCodePrefix::S,
                     CheckCodePrefix::T,
                     CheckCodePrefix::U,