diff --git a/initial.sh b/initial.sh
index d517251..60b6cea 100644
--- a/initial.sh
+++ b/initial.sh
@@ -40,7 +40,7 @@ echo `groups ${nml_user_name}`
 
 # 修改ssh端口和禁止root登陆
 cp ${SSHCONF} ${SSHCONF}.bak
-sed -i 's/Port 22/Port ${new_port}/g' "${SSHCONF}"
+sed -i "s/Port 22/Port ${new_port}/g" "${SSHCONF}"
 sed -i 's/PermitRootLogin yes/PermitRootLogin no/g' "${SSHCONF}"
 
 timedatectl set-timezone Asia/Shanghai