diff --git a/definitions/3.0.0/infoExtensions.json b/definitions/3.0.0/infoExtensions.json
index 47e71402..0c7f505f 100644
--- a/definitions/3.0.0/infoExtensions.json
+++ b/definitions/3.0.0/infoExtensions.json
@@ -4,6 +4,9 @@
     "properties": {
         "x-x":{
             "$ref": "http://asyncapi.com/extensions/x/0.1.0/schema.json"
+        },
+        "x-linkedin":{
+            "$ref": "http://asyncapi.com/extensions/linkedin/0.1.0/schema.json"
         }
     },
     "$schema": "http://json-schema.org/draft-07/schema#",