diff --git a/tests/src/Functional/DynamicEntityReferenceBaseTest.php b/tests/src/Functional/DynamicEntityReferenceBaseTest.php
index 2b58e2b..f0c992e 100644
--- a/tests/src/Functional/DynamicEntityReferenceBaseTest.php
+++ b/tests/src/Functional/DynamicEntityReferenceBaseTest.php
@@ -237,7 +237,7 @@ class DynamicEntityReferenceBaseTest extends BrowserTestBase {
     $this->assertTrue(strpos($input->getAttribute('data-autocomplete-path'), $expected_autocomplete_path) !== FALSE);
 
     // Add some extra dynamic entity reference fields.
-    $this->getSession()->getPage()->findButton('field_foobar_add_more')->click();
+    $this->getSession()->getPage()->findButton('Add another item')->click();
 
     $edit = array(
       // Ensure that an exact match on a unique label is accepted.
diff --git a/tests/src/Functional/DynamicEntityReferenceTest.php b/tests/src/Functional/DynamicEntityReferenceTest.php
index c468459..4b354bb 100644
--- a/tests/src/Functional/DynamicEntityReferenceTest.php
+++ b/tests/src/Functional/DynamicEntityReferenceTest.php
@@ -248,8 +248,8 @@ class DynamicEntityReferenceTest extends BrowserTestBase {
     $this->assertTrue(strpos($input->getAttribute('data-autocomplete-path'), $expected_autocomplete_path) !== FALSE);
 
     // Add some extra dynamic entity reference fields.
-    $this->getSession()->getPage()->findButton('field_foobar_add_more')->click();
-    $this->getSession()->getPage()->findButton('field_foobar_add_more')->click();
+    $this->getSession()->getPage()->findButton('Add another item')->click();
+    $this->getSession()->getPage()->findButton('Add another item')->click();
 
     $edit = array(
       'field_foobar[0][target_id]' => $this->anotherUser->label() . ' (' . $this->anotherUser->id() . ')',
@@ -425,8 +425,8 @@ class DynamicEntityReferenceTest extends BrowserTestBase {
     $this->drupalGet('entity_test/add');
 
     // Add some extra dynamic entity reference fields.
-    $this->getSession()->getPage()->findButton('field_foobar_add_more')->click();
-    $this->getSession()->getPage()->findButton('field_foobar_add_more')->click();
+    $this->getSession()->getPage()->findButton('Add another item')->click();
+    $this->getSession()->getPage()->findButton('Add another item')->click();
     $edit = array(
       'field_foobar[0][target_id]' => $this->adminUser->label() . ' (' . $this->adminUser->id() . ')',
       'field_foobar[0][target_type]' => 'user',