diff --git a/tests/phpunit/tests/ajax/Attachments.php b/tests/phpunit/tests/ajax/Attachments.php
index 0b2cb09451..657213d278 100644
--- a/tests/phpunit/tests/ajax/Attachments.php
+++ b/tests/phpunit/tests/ajax/Attachments.php
@@ -63,10 +63,9 @@ class Tests_Ajax_Attachments extends WP_Ajax_UnitTestCase {
 
 	/**
 	 * @ticket 36578
+	 * @group ms-excluded
 	 */
 	public function test_wp_ajax_send_attachment_to_editor_should_return_a_link() {
-		$this->skipWithMultisite();
-
 		// Become an administrator.
 		$post    = $_POST;
 		$user_id = self::factory()->user->create(
diff --git a/tests/phpunit/tests/ajax/DeletePlugin.php b/tests/phpunit/tests/ajax/DeletePlugin.php
index d84f401a17..c42e238499 100644
--- a/tests/phpunit/tests/ajax/DeletePlugin.php
+++ b/tests/phpunit/tests/ajax/DeletePlugin.php
@@ -125,8 +125,10 @@ class Tests_Ajax_Delete_Plugin extends WP_Ajax_UnitTestCase {
 		$this->assertSameSets( $expected, $response );
 	}
 
+	/**
+	 * @group ms-excluded
+	 */
 	public function test_delete_plugin() {
-		$this->skipWithMultisite();
 		$this->_setRole( 'administrator' );
 
 		$_POST['_ajax_nonce'] = wp_create_nonce( 'updates' );
diff --git a/tests/phpunit/tests/ajax/ManageThemes.php b/tests/phpunit/tests/ajax/ManageThemes.php
index 8d0f9c5b7f..89f2a9f978 100644
--- a/tests/phpunit/tests/ajax/ManageThemes.php
+++ b/tests/phpunit/tests/ajax/ManageThemes.php
@@ -101,8 +101,10 @@ class Tests_Ajax_Manage_Themes extends WP_Ajax_UnitTestCase {
 		$this->assertSameSets( $expected, $response );
 	}
 
+	/**
+	 * @group ms-excluded
+	 */
 	public function test_update_theme() {
-		$this->skipWithMultisite();
 		$this->_setRole( 'administrator' );
 
 		$_POST['_ajax_nonce'] = wp_create_nonce( 'updates' );
@@ -139,8 +141,10 @@ class Tests_Ajax_Manage_Themes extends WP_Ajax_UnitTestCase {
 		$this->assertSameSets( $expected, $response );
 	}
 
+	/**
+	 * @group ms-excluded
+	 */
 	function test_uppercase_theme_slug() {
-		$this->skipWithMultisite();
 		$this->_setRole( 'administrator' );
 
 		$_POST['_ajax_nonce'] = wp_create_nonce( 'updates' );
diff --git a/tests/phpunit/tests/ajax/UpdatePlugin.php b/tests/phpunit/tests/ajax/UpdatePlugin.php
index ceab32bfeb..44ce630633 100644
--- a/tests/phpunit/tests/ajax/UpdatePlugin.php
+++ b/tests/phpunit/tests/ajax/UpdatePlugin.php
@@ -129,8 +129,10 @@ class Tests_Ajax_Update_Plugin extends WP_Ajax_UnitTestCase {
 		$this->assertSameSets( $expected, $response );
 	}
 
+	/**
+	 * @group ms-excluded
+	 */
 	public function test_update_plugin() {
-		$this->skipWithMultisite();
 		$this->_setRole( 'administrator' );
 
 		$_POST['_ajax_nonce'] = wp_create_nonce( 'updates' );