diff --git a/specs.json b/specs.json
index 256acc0..983f1c4 100644
--- a/specs.json
+++ b/specs.json
@@ -198,6 +198,7 @@
     "properties": {
       "id": "string",
       "actionHook": "object|string",
+      "onHoldHook": "object|string",
       "answerOnBridge": "boolean",
       "callerId": "string",
       "callerName": "string",
diff --git a/test/jambonz-verb-test.js b/test/jambonz-verb-test.js
index ba8d86d..289781b 100644
--- a/test/jambonz-verb-test.js
+++ b/test/jambonz-verb-test.js
@@ -67,6 +67,7 @@ test("validate correct verbs", async (t) => {
     {
       "verb": "dial",
       "actionHook": "/outdial",
+      "onHoldHook": "/onHoldHook",
       "callerId": "+16173331212",
       "callerName": "Tom",
       "answerOnBridge": true,