diff --git a/modules/languages/siren-ruby.el b/modules/languages/siren-ruby.el
index 6caa51f..e955122 100644
--- a/modules/languages/siren-ruby.el
+++ b/modules/languages/siren-ruby.el
@@ -23,6 +23,7 @@
   :mode
   "Appraisals\\'"
   "Berksfile\\'"
+  "Brewfile\\'"
   "Capfile\\'"
   "Gemfile\\'"
   "Guardfile\\'"