diff --git a/python/ray/projects/scripts.py b/python/ray/projects/scripts.py
index 77374e0f4..2e6d4d8b0 100644
--- a/python/ray/projects/scripts.py
+++ b/python/ray/projects/scripts.py
@@ -326,6 +326,10 @@ def attach(screen, tmux):
 @click.option("--name", help="Name of the session to stop", default=None)
 def stop(name):
     project_definition = load_project_or_throw()
+
+    if not name:
+        name = project_definition.config["name"]
+
     teardown_cluster(
         project_definition.cluster_yaml(),
         yes=True,