diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 2541f5b0..0b15fb15 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -2847,6 +2847,8 @@ Ruby:
   - ruby
   - macruby
   - rake
+  - jruby
+  - rbx
   filenames:
   - .pryrc
   - Appraisals