diff --git a/tests/bootstrap/init.php b/tests/bootstrap/init.php
index be75f5a90..59f0ed636 100644
--- a/tests/bootstrap/init.php
+++ b/tests/bootstrap/init.php
@@ -19,3 +19,7 @@ ini_set('display_errors', 1);
 if(!file_exists(BASE_PATH . '/assets')) {
 	mkdir(BASE_PATH . '/assets', 02775);
 }
+
+if (empty($_SERVER['HTTP_HOST'])) {
+	$_SERVER['HTTP_HOST'] = 'localhost';
+}
diff --git a/tests/forms/HTMLEditorConfigTest.php b/tests/forms/HTMLEditorConfigTest.php
index 3cffa50be..156534c5f 100644
--- a/tests/forms/HTMLEditorConfigTest.php
+++ b/tests/forms/HTMLEditorConfigTest.php
@@ -76,7 +76,7 @@ class HTMLEditorConfigTest extends SapphireTest {
 		// Plugin specified with standard location
 		$this->assertContains('plugin4', array_keys($plugins));
 		$this->assertEquals(
-			'http://mysite.com/subdir/framework/admin/thirdparty/tinymce/plugins/plugin4/plugin.min.js',
+			'http://mysite.com/subdir/'.ADMIN_THIRDPARTY_DIR.'/tinymce/plugins/plugin4/plugin.min.js',
 			$plugins['plugin4']
 		);