diff --git a/definitions/3.0.0/X509.json b/definitions/3.0.0/X509.json
index 0ef56d8a..004db984 100644
--- a/definitions/3.0.0/X509.json
+++ b/definitions/3.0.0/X509.json
@@ -20,9 +20,9 @@
     }
   },
   "example": {
-		"$ref": "http://asyncapi.com/examples/3.0.0/X509.json"
-	},
+    "$ref": "http://asyncapi.com/examples/3.0.0/X509.json"
+  },
   "additionalProperties": false,
   "$schema": "http://json-schema.org/draft-07/schema#",
   "$id": "http://asyncapi.com/definitions/3.0.0/X509.json"
-}
\ No newline at end of file
+}