diff --git a/hwe/sammo/General.php b/hwe/sammo/General.php
index 2693ff38..0d8088ef 100644
--- a/hwe/sammo/General.php
+++ b/hwe/sammo/General.php
@@ -443,6 +443,8 @@ class General implements iAction
             }
         }
 
+        $statValue = Util::clamp($statValue, 0, GameConst::$maxLevel);
+
         if ($withIActionObj) {
             foreach ([
                 $this->nationType,