diff --git a/lgsm/modules/install_config.sh b/lgsm/modules/install_config.sh
index e868e9bf7..adf230e33 100644
--- a/lgsm/modules/install_config.sh
+++ b/lgsm/modules/install_config.sh
@@ -64,7 +64,7 @@ fn_default_config_local() {
 # PASSWORD to random password
 fn_set_config_vars() {
 	if [ -f "${servercfgfullpath}" ]; then
-		random=$(tr -dc A-Za-z0-9_ < /dev/urandom | head -c 8 | xargs)
+		random=$(tr -dc 'A-Za-z0-9_' < /dev/urandom 2>/dev/null | head -c 8 | xargs)
 		servername="LinuxGSM"
 		rconpass="admin${random}"
 		echo -e "changing hostname."