diff --git a/examples/social-media/backend/asyncapi.yaml b/examples/social-media/backend/asyncapi.yaml
index ca4ed7ccd..0ff462f50 100644
--- a/examples/social-media/backend/asyncapi.yaml
+++ b/examples/social-media/backend/asyncapi.yaml
@@ -46,7 +46,8 @@ channels:
     servers:
       - $ref: '#/servers/mosquitto'
     parameters:
-      commentId: {}
+      commentId:
+        $ref: '../common/parameters.yaml#/commentId'
   updateCommentsCount:
     address: update/comment/likes
     messages:
diff --git a/examples/social-media/comments-service/asyncapi.yaml b/examples/social-media/comments-service/asyncapi.yaml
index 4c9fb309f..74085de8d 100644
--- a/examples/social-media/comments-service/asyncapi.yaml
+++ b/examples/social-media/comments-service/asyncapi.yaml
@@ -35,7 +35,8 @@ channels:
       Sends the new count to the broker after it has been updated in the
       database.
     parameters:
-      commentId: {}
+      commentId:
+        $ref: '../common/parameters.yaml#/commentId'
 operations:
   receiveCommentLiked:
     action: receive
diff --git a/examples/social-media/common/parameters.yaml b/examples/social-media/common/parameters.yaml
new file mode 100644
index 000000000..91948c25e
--- /dev/null
+++ b/examples/social-media/common/parameters.yaml
@@ -0,0 +1,2 @@
+commentId:
+  description: ID of the comment
\ No newline at end of file