diff --git a/doc/neogen.txt b/doc/neogen.txt
index 2b724d2..4805720 100644
--- a/doc/neogen.txt
+++ b/doc/neogen.txt
@@ -191,6 +191,7 @@ Note: We will only document `major` and `minor` versions, not `patch` ones.
     None: placeholders are automatically set when using a bundled snippet engine.
     - Add `enable_placeholders` option (see |neogen-configuration|)
     - Add `placeholders_text` option (see |neogen-configuration|)
+    - Add `placeholders_hl` option (see |neogen-configuration|)
 
   Example placeholders:
 >