diff --git a/python/ray/data/tests/mock_server.py b/python/ray/data/tests/mock_server.py
index 543842630c59..11c3e0b24687 100644
--- a/python/ray/data/tests/mock_server.py
+++ b/python/ray/data/tests/mock_server.py
@@ -15,6 +15,8 @@
 
 def start_service(service_name, host, port):
     moto_svr_path = shutil.which("moto_server")
+    if not moto_svr_path:
+        pytest.skip("moto not installed")
     args = [moto_svr_path, service_name, "-H", host, "-p", str(port)]
     # For debugging
     # args = '{0} {1} -H {2} -p {3} 2>&1 | \