diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index fbde5cdc..a2a790a0 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -1136,6 +1136,7 @@ Ruby:
   - .thor
   - .watchr
   filenames:
+  - Berksfile
   - Gemfile
   - Guardfile
   - Podfile