diff --git a/app/code/Magento/Checkout/Block/Checkout/AttributeMerger.php b/app/code/Magento/Checkout/Block/Checkout/AttributeMerger.php
index bf0884a8c83ea..5a01f524edeb1 100644
--- a/app/code/Magento/Checkout/Block/Checkout/AttributeMerger.php
+++ b/app/code/Magento/Checkout/Block/Checkout/AttributeMerger.php
@@ -274,6 +274,7 @@ protected function getMultilineFieldConfig($attributeCode, array $attributeConfi
         for ($lineIndex = 0; $lineIndex < (int)$attributeConfig['size']; $lineIndex++) {
             $isFirstLine = $lineIndex === 0;
             $line = [
+                'label' => __("%1: Line %2", $attributeConfig['label'], $lineIndex + 1),
                 'component' => 'Magento_Ui/js/form/element/abstract',
                 'config' => [
                     // customScope is used to group elements within a single form e.g. they can be validated separately
diff --git a/app/design/frontend/Magento/blank/Magento_Customer/web/css/source/_module.less b/app/design/frontend/Magento/blank/Magento_Customer/web/css/source/_module.less
index 0ebd722429480..2b6eda56331f3 100644
--- a/app/design/frontend/Magento/blank/Magento_Customer/web/css/source/_module.less
+++ b/app/design/frontend/Magento/blank/Magento_Customer/web/css/source/_module.less
@@ -165,7 +165,7 @@
 
     //  Checkout address (create shipping address)
     .field.street {
-        .field.additional {
+        .field {
             .label {
                 &:extend(.abs-visually-hidden all);
             }
diff --git a/app/design/frontend/Magento/luma/Magento_Customer/web/css/source/_module.less b/app/design/frontend/Magento/luma/Magento_Customer/web/css/source/_module.less
index 460f8e50d59a9..f283a11da3400 100755
--- a/app/design/frontend/Magento/luma/Magento_Customer/web/css/source/_module.less
+++ b/app/design/frontend/Magento/luma/Magento_Customer/web/css/source/_module.less
@@ -199,7 +199,7 @@
 
     //  Checkout address (create shipping address)
     .field.street {
-        .field.additional {
+        .field {
             .label {
                 &:extend(.abs-visually-hidden all);
             }