diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index c74f6a94..8dbea3d8 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -584,6 +584,7 @@ JavaScript:
   - .bones
   - .jake
   - .js
+  - .jsfl
   - .jsm
   - .jss
   - .jsx