diff --git a/core/modules/link/src/Plugin/Field/FieldWidget/LinkWidget.php b/core/modules/link/src/Plugin/Field/FieldWidget/LinkWidget.php
index 94f0315..a68db27 100644
--- a/core/modules/link/src/Plugin/Field/FieldWidget/LinkWidget.php
+++ b/core/modules/link/src/Plugin/Field/FieldWidget/LinkWidget.php
@@ -169,7 +169,7 @@ public function formElement(FieldItemListInterface $items, $delta, array $elemen
       '#attributes' => array('class' => array('link-field-widget-attributes')),
     );
 
-    // If cardinality is 1, ensure a proper label is output for the field
+    // If cardinality is 1, ensure a proper label is output for the field.
     if ($this->fieldDefinition->getFieldStorageDefinition()->getCardinality() == 1) {
       // If the link title is disabled, use the field definition label as the
       // title of the 'uri' element.