diff --git a/.phpstan.dist.baseline.neon b/.phpstan.dist.baseline.neon
index 08f066bb2b0..18291848aca 100644
--- a/.phpstan.dist.baseline.neon
+++ b/.phpstan.dist.baseline.neon
@@ -2710,11 +2710,6 @@ parameters:
 			count: 2
 			path: app/code/core/Mage/Customer/Model/Convert/Parser/Customer.php
 
-		-
-			message: "#^Method Mage_Directory_Model_Region\\:\\:loadByName\\(\\) invoked with 1 parameter, 2 required\\.$#"
-			count: 1
-			path: app/code/core/Mage/Customer/Model/Customer.php
-
 		-
 			message: "#^Parameter \\#1 \\$data \\(stdClass\\) of method Mage_Customer_Model_Customer_Api_V2\\:\\:_prepareData\\(\\) should be compatible with parameter \\$data \\(array\\) of method Mage_Customer_Model_Customer_Api\\:\\:_prepareData\\(\\)$#"
 			count: 1
diff --git a/app/code/core/Mage/Customer/Model/Customer.php b/app/code/core/Mage/Customer/Model/Customer.php
index 6d9dede2b12..a81cbcb0e4f 100644
--- a/app/code/core/Mage/Customer/Model/Customer.php
+++ b/app/code/core/Mage/Customer/Model/Customer.php
@@ -1416,7 +1416,7 @@ public function validateAddress(array $data, $type = 'billing')
                         return false;
                     }
 
-                    $region = Mage::getModel('directory/region')->loadByName($data[$prefix . 'region']);
+                    $region = Mage::getModel('directory/region')->loadByName($data[$prefix . 'region'], $data[$prefix . $field]);
                     if (!$region->getId()) {
                         return false;
                     }