diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index b92383d0..ee711d61 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -898,7 +898,8 @@ Smarty:
   - .tpl
 
 Standard ML:
-  lexer: OCaml
+  type: programming
+  lexer: Standard ML
   aliases:
   - sml
   primary_extension: .sml