diff --git a/masterlist.yaml b/masterlist.yaml
index b1796b3..53186a5 100644
--- a/masterlist.yaml
+++ b/masterlist.yaml
@@ -1560,6 +1560,10 @@ plugins:
       - link: 'https://www.nexusmods.com/newvegas/mods/85939/'
         name: 'ATMOS Ambience Overhaul'
   - name: 'ATMOS (Ambient Overhaul( Intense| Subtle)?)\.esp'
+    msg:
+      - <<: *useOnlyOneX
+        subs: [ 'ATMOS Ambient Overhaul ESP' ]
+        condition: 'many("ATMOS (Ambient Overhaul( Intense| Subtle)?)\.esp")'
     tag:
       - C.Acoustic
       - Sound