diff --git a/examples/mc_multigpu_test.py b/examples/mc_multigpu_test.py
index 3caed7a..ed72629 100644
--- a/examples/mc_multigpu_test.py
+++ b/examples/mc_multigpu_test.py
@@ -10,8 +10,8 @@
 )
 
 
-backend = "nccl"
-# backend = "gloo"
+# backend = "nccl"
+backend = "gloo"
 # set_seed(42)
 setup(backend=backend)
 device = get_device()