diff --git a/web/src/common/service/execute.js b/web/src/common/service/execute.js
index 5b78ae34d5..e7bcae670d 100755
--- a/web/src/common/service/execute.js
+++ b/web/src/common/service/execute.js
@@ -376,6 +376,7 @@ Execute.prototype.getFirstResult = function() {
       taskID: this.taskID,
       status: this.status,
     });
+    const pageSize = 5000;
     let params = {
       path: this.currentResultPath,
       pageSize,
@@ -385,7 +386,7 @@ Execute.prototype.getFirstResult = function() {
       params.taskId = this.taskID
     }
     const url = `/${this.getResultUrl}/openFile`;
-    const pageSize = 5000;
+
     api.fetch(url, params, 'get')
       .then((rst) => {
         this.trigger('result', rst);