diff --git a/core/modules/field/src/Plugin/migrate/process/d6/FieldInstanceWidgetSettings.php b/core/modules/field/src/Plugin/migrate/process/d6/FieldInstanceWidgetSettings.php
index 1c7ede6..d61b292 100644
--- a/core/modules/field/src/Plugin/migrate/process/d6/FieldInstanceWidgetSettings.php
+++ b/core/modules/field/src/Plugin/migrate/process/d6/FieldInstanceWidgetSettings.php
@@ -55,6 +55,7 @@ public function getSettings($widget_type, $widget_settings) {
       ),
       'email_textfield' => array(
         'placeholder' => '',
+        'size' => $size,
       ),
       'link' => array(
         'placeholder_url' => '',
diff --git a/core/modules/field/tests/src/Kernel/Migrate/d6/MigrateFieldWidgetSettingsTest.php b/core/modules/field/tests/src/Kernel/Migrate/d6/MigrateFieldWidgetSettingsTest.php
index b557665..cd7821a 100644
--- a/core/modules/field/tests/src/Kernel/Migrate/d6/MigrateFieldWidgetSettingsTest.php
+++ b/core/modules/field/tests/src/Kernel/Migrate/d6/MigrateFieldWidgetSettingsTest.php
@@ -57,10 +57,12 @@ public function testWidgetSettings() {
     // Email field.
     $component = $form_display->getComponent('field_test_email');
     $expected = [];
-
     $expected['weight'] = 6;
     $expected['type'] = 'email_default';
-    $expected['settings'] = array('placeholder' => '');
+    $expected['settings'] = array(
+      'size' => 60,
+      'placeholder' => ''
+    );
     $expected['third_party_settings'] = [];
     $this->assertIdentical($expected, $component);