diff --git a/packages/wxa-cli/src/resolvers/directive/mock/index.js b/packages/wxa-cli/src/resolvers/directive/mock/index.js
index 1c907828..e01c8d4a 100644
--- a/packages/wxa-cli/src/resolvers/directive/mock/index.js
+++ b/packages/wxa-cli/src/resolvers/directive/mock/index.js
@@ -28,7 +28,7 @@ function mock(drc, element, mdl) {
     if (isDev()) {
         let targetList = findMockTarget(element);
         targetList.forEach((target) => {
-            element.attribs.class = addClass(element.attribs.class, DRC_CLASS_NAME);
+            element.attribs.class = addClass(element.attribs.class, DRC_CLASS_NAME).join(' ');
             element.attribs[DRC_ATTR_NAME] = drc.value;
             delete target.attribs[DRC_FULL_NAME];
             setWarningStyle(target);
diff --git a/packages/wxa-cli/src/wxa.js b/packages/wxa-cli/src/wxa.js
index 1524b3e1..7f176a71 100644
--- a/packages/wxa-cli/src/wxa.js
+++ b/packages/wxa-cli/src/wxa.js
@@ -37,7 +37,6 @@ commander
     .option('--no-progress', '不展示文件进度')
     .option('--verbose', '展示多余的信息')
     .option('-t, --target', '编译目标平台，如微信小程序wechat, 头条小程序tt')
-    .option('-d-mock', '开启mock指令')
     // .option('--max-watch-project <max>', '三方开发模式，最多同时监听几个项目, default: 3')
     .action(async (cmd)=>{
         showSlogan();