diff --git a/src/views/perfManage/customTarget/index.vue b/src/views/perfManage/customTarget/index.vue
index 00c4fe8c..fa79791f 100644
--- a/src/views/perfManage/customTarget/index.vue
+++ b/src/views/perfManage/customTarget/index.vue
@@ -385,7 +385,7 @@ function fnModalOk() {
         message.error(t('views.perfManage.customTarget.expressionNoIdTip'), 3);
         return false;
       }
-
+      modalState.from.expression = result;
       const from = toRaw(modalState.from);
       //return false;
       modalState.confirmLoading = true;