diff --git a/UnitMethods.h b/UnitMethods.h
index 5c42396..392c1b6 100644
--- a/UnitMethods.h
+++ b/UnitMethods.h
@@ -1571,10 +1571,7 @@ namespace LuaUnit
         uint8 newlevel = Eluna::CHECKVAL<uint8>(L, 2);
 
         if (newlevel < 1)
-            return 0;
-
-        if (newlevel > STRONG_MAX_LEVEL)
-            newlevel = STRONG_MAX_LEVEL;
+            return luaL_argerror(L, 2, "level cannot be below 1");
 
         if (Player* player = unit->ToPlayer())
         {