diff --git a/swagger/zipkin2-api.yaml b/swagger/zipkin2-api.yaml
index 6f28399..7c7f183 100644
--- a/swagger/zipkin2-api.yaml
+++ b/swagger/zipkin2-api.yaml
@@ -1,4 +1,3 @@
-#
 # Copyright 2018-2024 The OpenZipkin Authors
 #
 # Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
@@ -11,6 +10,7 @@
 # or implied. See the License for the specific language governing permissions and limitations under
 # the License.
 #
+# Source: https://zipkin.io/zipkin-api/zipkin2-api.yaml
 
 swagger: "2.0"
 info: