diff --git a/extensions/yaml/package.json b/extensions/yaml/package.json
index fbbabd817092d..15739573f414b 100644
--- a/extensions/yaml/package.json
+++ b/extensions/yaml/package.json
@@ -40,7 +40,10 @@
           ".eyaml",
           ".eyml",
           ".yaml",
-          ".cff"
+          ".cff",
+          ".yaml-tmlanguage",
+          ".yaml-tmpreferences",
+          ".yaml-tmtheme"
         ],
         "firstLine": "^#cloud-config",
         "configuration": "./language-configuration.json"