diff --git a/core/modules/entity_reference/src/Tests/EntityReferenceAdminTest.php b/core/modules/entity_reference/src/Tests/EntityReferenceAdminTest.php
index 31ad684..03daf1f 100644
--- a/core/modules/entity_reference/src/Tests/EntityReferenceAdminTest.php
+++ b/core/modules/entity_reference/src/Tests/EntityReferenceAdminTest.php
@@ -257,7 +257,8 @@ public function testFieldAdminHandler() {
     // Try to add a new node and fill the entity reference field.
     $this->drupalGet('node/add/' . $this->type);
     $result = $this->xpath('//input[@name="field_test_entity_ref_field[0][target_id]" and contains(@data-autocomplete-path, "/entity_reference_autocomplete/node/views/")]');
-    $this->drupalGet($result[0]['data-autocomplete-path'], array('query' => array('q' => 'Foo')));
+    $target_url = $this->getAbsoluteUrl($result[0]['data-autocomplete-path']);
+    $this->drupalGet($target_url, array('query' => array('q' => 'Foo')));
     $this->assertRaw('Foo');
   }