diff --git a/examples/regression/train.conf b/examples/regression/train.conf
index 949268c04eb6..92b225bf4c8b 100644
--- a/examples/regression/train.conf
+++ b/examples/regression/train.conf
@@ -113,4 +113,4 @@ local_listen_port = 12400
 # machines list file for distributed training, alias: mlist
 machine_list_file = mlist.txt
 
-device = cuda
\ No newline at end of file
+device = cude
\ No newline at end of file