diff --git a/examples/adeo-kafka-request-reply-asyncapi.yml b/examples/adeo-kafka-request-reply-asyncapi.yml
index b9a04895..85d5074d 100644
--- a/examples/adeo-kafka-request-reply-asyncapi.yml
+++ b/examples/adeo-kafka-request-reply-asyncapi.yml
@@ -242,7 +242,9 @@ components:
       bindings:
         kafka:
           key:
-            $ref: "https://deploy-preview-921--asyncapi-website.netlify.app/resources/casestudies/adeo/CostingResponseKey.avsc"
+            schemaFormat: 'application/vnd.apache.avro+json;version=1.9.0'
+            schema: 
+              $ref: "https://deploy-preview-921--asyncapi-website.netlify.app/resources/casestudies/adeo/CostingResponseKey.avsc"
       payload:
         schemaFormat: application/vnd.apache.avro;version=1.9.0
         schema: 
@@ -330,4 +332,4 @@ components:
       description: >
         Use [SASL authentication with SSL
         encryption](https://docs.confluent.io/platform/current/security/security_tutorial.html#configure-clients)
-        to connect to the ADEO Broker.
\ No newline at end of file
+        to connect to the ADEO Broker.