diff --git a/examples/multi_node_examples/multi_node_demo.py b/examples/multi_node_examples/multi_node_demo.py
index 577336b8..c380497b 100644
--- a/examples/multi_node_examples/multi_node_demo.py
+++ b/examples/multi_node_examples/multi_node_demo.py
@@ -30,7 +30,8 @@ def main(hparams):
     # ------------------------
     trainer = Trainer(
         gpus=2,
-        nb_gpu_nodes=2
+        nb_gpu_nodes=2,
+        distributed_backend='ddp'
     )
 
     # ------------------------