diff --git a/hwe/sammo/Scenario/NPC.php b/hwe/sammo/Scenario/NPC.php
index 2eac637b..8af86201 100644
--- a/hwe/sammo/Scenario/NPC.php
+++ b/hwe/sammo/Scenario/NPC.php
@@ -1,6 +1,7 @@
 <?php
 namespace sammo\Scenario;
 use \sammo\Util;
+use \sammo\JosaUtil;
 use \sammo\DB;
 use \sammo\CityHelper;