diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index af1a7167..9d11fcc9 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -1478,6 +1478,7 @@ Visual Basic:
   primary_extension: .vb
   extensions:
   - .bas
+  - .frm
   - .frx
   - .vba
   - .vbs