diff --git a/hwe/sammo/TurnExecutionHelper.php b/hwe/sammo/TurnExecutionHelper.php
index 41861b2e..df623be3 100644
--- a/hwe/sammo/TurnExecutionHelper.php
+++ b/hwe/sammo/TurnExecutionHelper.php
@@ -364,7 +364,7 @@ class TurnExecutionHelper
 
             if (($autorun_user['limit_minutes'] ?? false) && $general->getNPCType() < 2 && $hasReservedTurn) {
                 $autorun_limit = Util::joinYearMonth($year, $month);
-                $autorun_limit += intdiv($autorun_user['limit_minutes'], $turnterm);
+                $autorun_limit += intdiv($autorun_user['limit_minutes'], abs($turnterm));
 
                 $general->setAuxVar('autorun_limit', $autorun_limit);
             }