diff --git a/setup.sh b/setup.sh
old mode 100644
new mode 100755
index 585e282..d6a4cb2
--- a/setup.sh
+++ b/setup.sh
@@ -5,8 +5,8 @@ eval $(grep '^ID=' /etc/os-release)
 distro=${ID:-unknown}
 case $distro in
     debian)
-        apt update
-        apt install openssh-server
+        apt-get update
+        apt-get install -y openssh-server
         install -d -m 0700 $HOME/.ssh
         echo $ssh_key > $HOME/.ssh/authorized_keys
         echo 'PermitRootLogin prohibit-password' > /etc/ssh/sshd_config.d/root.conf