diff --git a/init-apt.sh b/init-apt.sh
index ffc3262..01144a8 100644
--- a/init-apt.sh
+++ b/init-apt.sh
@@ -38,7 +38,7 @@ server ntp5.aliyun.com iburst
 driftfile /var/lib/chrony/drift
 allow 127.0.0.1
 EOF
-if command -v systemctl >/dev/null 2>&1; then
+if pidof systemd >/dev/null 2>&1; then
     systemctl restart chrony && systemctl enable chrony
 else
     echo "systemctl 不存在，跳过 chrony 的重启"
diff --git a/init-docker.sh b/init-docker.sh
index 6dbe239..795a69d 100644
--- a/init-docker.sh
+++ b/init-docker.sh
@@ -21,7 +21,7 @@ cat > /etc/docker/daemon.json <<EOF
 }
 EOF
 
-if command -v systemctl >/dev/null 2>&1; then
+if pidof systemd >/dev/null 2>&1; then
     systemctl restart docker
 else
     echo "systemctl 不存在，跳过 docker 重启。"