diff --git a/docs/source/basic_tutorials/launcher.md b/docs/source/basic_tutorials/launcher.md
index 1e5b6fd2..de7c995d 100644
--- a/docs/source/basic_tutorials/launcher.md
+++ b/docs/source/basic_tutorials/launcher.md
@@ -162,7 +162,7 @@ Options:
           This setting is only applied if there is room in the batch as defined by `max_batch_total_tokens`.
           
           [env: WAITING_SERVED_RATIO=]
-          [default: 0.3]
+          [default: 1.2]
 
 ```
 ## MAX_BATCH_PREFILL_TOKENS