diff --git a/docs/reference/api/docker_remote_api_v1.24.md b/docs/reference/api/docker_remote_api_v1.24.md
index 1ff4b07b1d..436a760c40 100644
--- a/docs/reference/api/docker_remote_api_v1.24.md
+++ b/docs/reference/api/docker_remote_api_v1.24.md
@@ -3981,6 +3981,7 @@ Create a service
 
 - **201** – no error
 - **406** – server error or node is not part of a Swarm
+- **409** – name conflicts with an existing object
 
 JSON Parameters: