diff --git a/specs.json b/specs.json
index 0b83c5b..4f6c799 100644
--- a/specs.json
+++ b/specs.json
@@ -564,6 +564,7 @@
       "label": "string",
       "language": "string",
       "voice": "string|object",
+      "model": "string",
       "fallbackVendor": "string",
       "fallbackLabel": "string",
       "fallbackLanguage": "string",
diff --git a/test/jambonz-verb-test.js b/test/jambonz-verb-test.js
index 1e728be..772b1a4 100644
--- a/test/jambonz-verb-test.js
+++ b/test/jambonz-verb-test.js
@@ -409,6 +409,17 @@ test("validate correct verbs", async (t) => {
         "language": "en-US"
       }
     },
+    {
+      "verb": "say",
+      "text": "hi there!",
+      "synthesizer": {
+        "vendor": "elevenlabs",
+        "language": "en",
+        "voice": "pNInz6obpgDQGcFmaJgB",
+        "label": "label1",
+        "model": "eleven_multilingual_v2"
+      }
+    },
     {
       "verb": "sip:decline",
       "status": 480,