diff --git a/docs/source/basic_tutorials/launcher.md b/docs/source/basic_tutorials/launcher.md
index 9246093e..f6175925 100644
--- a/docs/source/basic_tutorials/launcher.md
+++ b/docs/source/basic_tutorials/launcher.md
@@ -336,6 +336,13 @@ Options:
       --otlp-endpoint <OTLP_ENDPOINT>
           [env: OTLP_ENDPOINT=]
 
+```
+## OTLP_SERVICE_NAME
+```shell
+      --otlp-service-name <OTLP_SERVICE_NAME>
+          [env: OTLP_SERVICE_NAME=]
+          [default: text-generation-inference.router]
+
 ```
 ## CORS_ALLOW_ORIGIN
 ```shell