diff --git a/ui/packages/common/AiUserSelecter.vue b/ui/packages/common/AiUserSelecter.vue
index f78d384f..0187b220 100644
--- a/ui/packages/common/AiUserSelecter.vue
+++ b/ui/packages/common/AiUserSelecter.vue
@@ -336,7 +336,7 @@
       },
 
       onTreeChange (e) {
-        this.search.departmentId = e[this.props.id] || ''
+        this.search.departmentId = e.id || ''
         this.search.current = 1
 
         this.$nextTick(() => {