diff --git a/specs.json b/specs.json
index e4414f4..d9363df 100644
--- a/specs.json
+++ b/specs.json
@@ -80,6 +80,7 @@
   },
   "listenOptions": {
     "properties": {
+      "actionHook": "object|string",
       "enable": "boolean",
       "url": "string",
       "sampleRate": "number",
diff --git a/test/jambonz-verb-test.js b/test/jambonz-verb-test.js
index 36feed9..7d96728 100644
--- a/test/jambonz-verb-test.js
+++ b/test/jambonz-verb-test.js
@@ -364,6 +364,7 @@ test("validate correct verbs", async (t) => {
     {
       "verb": "config",
       "listen": {
+        "actionHook": "/listen-ended",
         "enable": true,
         "url": "wss://myrecorder.example.com/calls",
         "mixType" : "stereo",