diff --git a/specs.json b/specs.json
index 3f30577..8622d39 100644
--- a/specs.json
+++ b/specs.json
@@ -423,7 +423,7 @@
       "earlyMedia": "boolean"
     },
     "required": [
-      "recognizer"
+      "transcriptionHook"
     ]
   },
   "target": {