diff --git a/app/common/model/system/Department.php b/app/common/model/system/Department.php
index 2af62f0a29ce2d2f2d6df99591a1f071c4c14a3b..4388890742197befbaba1177c73b150dc83a1ed3 100644
--- a/app/common/model/system/Department.php
+++ b/app/common/model/system/Department.php
@@ -27,6 +27,7 @@ class Department extends Model
 		if (is_array($array) && !empty($array)) {
 			return list_to_tree($array);
 		}
+          return [];
 	}
 
     // 字段修改器