diff --git a/python/sglang/srt/utils.py b/python/sglang/srt/utils.py
index b661d648f..1ba9f38f7 100644
--- a/python/sglang/srt/utils.py
+++ b/python/sglang/srt/utils.py
@@ -527,6 +527,9 @@ def kill_process_tree(parent_pid, include_parent: bool = True, skip_pid: int = N
             pass
 
     if include_parent:
+        if parent_pid == os.getpid():
+            sys.exit(0)
+
         try:
             itself.kill()