diff --git a/x-pack/plugin/src/test/resources/rest-api-spec/api/watcher.stats.json b/x-pack/plugin/src/test/resources/rest-api-spec/api/watcher.stats.json
index 1fe6eaed3d9a8..01241848ab9f3 100644
--- a/x-pack/plugin/src/test/resources/rest-api-spec/api/watcher.stats.json
+++ b/x-pack/plugin/src/test/resources/rest-api-spec/api/watcher.stats.json
@@ -7,14 +7,14 @@
       "paths": [ "/_watcher/stats", "/_watcher/stats/{metric}" ],
       "parts": {
         "metric": {
-          "type" : "enum",
+          "type" : "list",
           "options" : ["_all", "queued_watches", "current_watches", "pending_watches"],
           "description" : "Controls what additional stat metrics should be include in the response"
         }
       },
       "params": {
         "metric": {
-          "type" : "enum",
+          "type" : "list",
           "options" : ["_all", "queued_watches", "current_watches", "pending_watches"],
           "description" : "Controls what additional stat metrics should be include in the response"
         },