diff --git a/app/code/core/Mage/SalesRule/Model/Observer.php b/app/code/core/Mage/SalesRule/Model/Observer.php
index fab363b69a6..aac4f9327dd 100644
--- a/app/code/core/Mage/SalesRule/Model/Observer.php
+++ b/app/code/core/Mage/SalesRule/Model/Observer.php
@@ -158,7 +158,7 @@ public function sales_order_paymentCancel($observer)
                     Mage::getResourceModel('salesrule/coupon_usage')->updateCustomerCouponTimesUsed($customerId, $coupon->getId(), true);
 
                     // Decrement rule times_used
-                    if ($customerCoupon = Mage::getModel('salesrule/rule_customer')->loadByCustomerRule($customerId, $coupon->getId())) {
+                    if ($customerCoupon = Mage::getModel('salesrule/rule_customer')->loadByCustomerRule($customerId, $coupon->getRuleId())) {
                         $customerCoupon->setTimesUsed($customerCoupon->getTimesUsed() - 1);
                         $customerCoupon->save();
                     }