diff --git a/src/views/trials/trials-workbench/index.vue b/src/views/trials/trials-workbench/index.vue
index 1f8e6886..c51d9b0e 100644
--- a/src/views/trials/trials-workbench/index.vue
+++ b/src/views/trials/trials-workbench/index.vue
@@ -522,7 +522,7 @@ export default {
       })
     },
     refreshSysData(){
-      --this.tabList.SysWaitSignDocCount
+      this.tabList.SysWaitSignDocCount = this.tabList.SysWaitSignDocCount - 1
       store.dispatch('user/setTotalNeedSignSystemDocCount', this.tabList.SysWaitSignDocCount)
     },
     getUserTobeDoneRecord() {