diff --git a/lib/private/Collaboration/Collaborators/RemotePlugin.php b/lib/private/Collaboration/Collaborators/RemotePlugin.php
index e0f5298f83b..c967b51df14 100644
--- a/lib/private/Collaboration/Collaborators/RemotePlugin.php
+++ b/lib/private/Collaboration/Collaborators/RemotePlugin.php
@@ -30,6 +30,7 @@ use OCP\Collaboration\Collaborators\SearchResultType;
 use OCP\Contacts\IManager;
 use OCP\Federation\ICloudIdManager;
 use OCP\IConfig;
+use OCP\IUserManager;
 use OCP\Share;
 
 class RemotePlugin implements ISearchPlugin {
@@ -41,11 +42,14 @@ class RemotePlugin implements ISearchPlugin {
 	private $cloudIdManager;
 	/** @var IConfig */
 	private $config;
+	/** @var IUserManager */
+	private $userManager;
 
-	public function __construct(IManager $contactsManager, ICloudIdManager $cloudIdManager, IConfig $config) {
+	public function __construct(IManager $contactsManager, ICloudIdManager $cloudIdManager, IConfig $config, IUserManager $userManager) {
 		$this->contactsManager = $contactsManager;
 		$this->cloudIdManager = $cloudIdManager;
 		$this->config = $config;
+		$this->userManager = $userManager;
 
 		$this->shareeEnumeration = $this->config->getAppValue('core', 'shareapi_allow_share_dialog_user_enumeration', 'yes') === 'yes';
 	}
@@ -69,11 +73,16 @@ class RemotePlugin implements ISearchPlugin {
 				$lowerSearch = strtolower($search);
 				foreach ($cloudIds as $cloudId) {
 					try {
-						list(, $serverUrl) = $this->splitUserRemote($cloudId);
+						list($remoteUser, $serverUrl) = $this->splitUserRemote($cloudId);
 					} catch (\InvalidArgumentException $e) {
 						continue;
 					}
 
+					$localUser = $this->userManager->get($remoteUser);
+					if ($localUser !== null && $cloudId === $localUser->getCloudId()) {
+						continue;
+					}
+
 					if (strtolower($contact['FN']) === $lowerSearch || strtolower($cloudId) === $lowerSearch) {
 						if (strtolower($cloudId) === $lowerSearch) {
 							$searchResult->markExactIdMatch($resultType);
diff --git a/tests/lib/Collaboration/Collaborators/RemotePluginTest.php b/tests/lib/Collaboration/Collaborators/RemotePluginTest.php
index aa009a7134b..ac050e23562 100644
--- a/tests/lib/Collaboration/Collaborators/RemotePluginTest.php
+++ b/tests/lib/Collaboration/Collaborators/RemotePluginTest.php
@@ -31,10 +31,15 @@ use OCP\Collaboration\Collaborators\SearchResultType;
 use OCP\Contacts\IManager;
 use OCP\Federation\ICloudIdManager;
 use OCP\IConfig;
+use OCP\IUserManager;
 use OCP\Share;
 use Test\TestCase;
 
 class RemotePluginTest extends TestCase {
+
+	/** @var IUserManager|\PHPUnit_Framework_MockObject_MockObject */
+	protected $userManager;
+
 	/** @var  IConfig|\PHPUnit_Framework_MockObject_MockObject */
 	protected $config;
 
@@ -53,6 +58,7 @@ class RemotePluginTest extends TestCase {
 	public function setUp() {
 		parent::setUp();
 
+		$this->userManager = $this->createMock(IUserManager::class);
 		$this->config = $this->createMock(IConfig::class);
 		$this->contactsManager = $this->createMock(IManager::class);
 		$this->cloudIdManager = new CloudIdManager();
@@ -60,7 +66,7 @@ class RemotePluginTest extends TestCase {
 	}
 
 	public function instantiatePlugin() {
-		$this->plugin = new RemotePlugin($this->contactsManager, $this->cloudIdManager, $this->config);
+		$this->plugin = new RemotePlugin($this->contactsManager, $this->cloudIdManager, $this->config, $this->userManager);
 	}
 
 	/**