diff --git a/script/tools/safe_sshcmd.sh b/script/tools/safe_sshcmd.sh
index 502f7ac62ff64c1e27630bc67f7635c7265b1972..beb5cc73d42f37c270649e2242486c42de3d1a80 100644
--- a/script/tools/safe_sshcmd.sh
+++ b/script/tools/safe_sshcmd.sh
@@ -4,7 +4,7 @@
 set -e
 execcmd=""
 machineip=""
-loginuser=""
+loginuser="root"
 loginpassword=""
 timeout=120
 retry_cnt=3