diff --git a/specs.json b/specs.json
index 76d3960..4c511e5 100644
--- a/specs.json
+++ b/specs.json
@@ -710,6 +710,7 @@
       },
       "speechStartTimeoutMs": "number",
       "speechEndTimeoutMs": "number",
+      "enableVoiceActivityEvents": "boolean",
       "transcriptNormalization": "array"
     }
   },
diff --git a/test/jambonz-verb-test.js b/test/jambonz-verb-test.js
index c58b2f3..dab7759 100644
--- a/test/jambonz-verb-test.js
+++ b/test/jambonz-verb-test.js
@@ -423,6 +423,7 @@ test("validate correct verbs", async (t) => {
           "serviceVersion": "v2",
           "speechStartTimeoutMs": 500,
           "speechEndTimeoutMs": 1000,
+          "enableVoiceActivityEvents": true,
           "transcriptNormalization" : [
             {
               "search": "dog",