diff --git a/apps/dav/lib/Comments/EntityCollection.php b/apps/dav/lib/Comments/EntityCollection.php
index a55a18c00c029260672d927c0763985d72fa0bcc..8fa13da6162c8d68ddc157e7fa9f9e0c54d29188 100644
--- a/apps/dav/lib/Comments/EntityCollection.php
+++ b/apps/dav/lib/Comments/EntityCollection.php
@@ -22,11 +22,12 @@
 namespace OCA\DAV\Comments;
 
 use OCP\Comments\ICommentsManager;
-use OCP\Files\Folder;
+use OCP\Comments\NotFoundException;
 use OCP\ILogger;
 use OCP\IUserManager;
 use OCP\IUserSession;
 use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\IProperties;
 use Sabre\DAV\PropPatch;
 
 /**
@@ -37,12 +38,9 @@ use Sabre\DAV\PropPatch;
  *
  * @package OCA\DAV\Comments
  */
-class EntityCollection extends RootCollection implements \Sabre\DAV\IProperties {
+class EntityCollection extends RootCollection implements IProperties {
 	const PROPERTY_NAME_READ_MARKER  = '{http://owncloud.org/ns}readMarker';
 
-	/** @var  Folder */
-	protected $fileRoot;
-
 	/** @var  string */
 	protected $id;
 
@@ -53,7 +51,6 @@ class EntityCollection extends RootCollection implements \Sabre\DAV\IProperties
 	 * @param string $id
 	 * @param string $name
 	 * @param ICommentsManager $commentsManager
-	 * @param Folder $fileRoot
 	 * @param IUserManager $userManager
 	 * @param IUserSession $userSession
 	 * @param ILogger $logger
@@ -62,7 +59,6 @@ class EntityCollection extends RootCollection implements \Sabre\DAV\IProperties
 		$id,
 		$name,
 		ICommentsManager $commentsManager,
-		Folder $fileRoot,
 		IUserManager $userManager,
 		IUserSession $userSession,
 		ILogger $logger
@@ -76,7 +72,6 @@ class EntityCollection extends RootCollection implements \Sabre\DAV\IProperties
 		$this->id = $id;
 		$this->name = $name;
 		$this->commentsManager = $commentsManager;
-		$this->fileRoot = $fileRoot;
 		$this->logger = $logger;
 		$this->userManager = $userManager;
 		$this->userSession = $userSession;
@@ -111,7 +106,7 @@ class EntityCollection extends RootCollection implements \Sabre\DAV\IProperties
 				$this->userSession,
 				$this->logger
 			);
-		} catch (\OCP\Comments\NotFoundException $e) {
+		} catch (NotFoundException $e) {
 			throw new NotFound();
 		}
 	}
@@ -159,7 +154,7 @@ class EntityCollection extends RootCollection implements \Sabre\DAV\IProperties
 		try {
 			$this->commentsManager->get($name);
 			return true;
-		} catch (\OCP\Comments\NotFoundException $e) {
+		} catch (NotFoundException $e) {
 			return false;
 		}
 	}
diff --git a/apps/dav/lib/Comments/EntityTypeCollection.php b/apps/dav/lib/Comments/EntityTypeCollection.php
index 6bc4248420786a30b9f2e3215e0d378e93f4c740..0466982e4f20c7e9e6cfcdbac63b682a48afc1dc 100644
--- a/apps/dav/lib/Comments/EntityTypeCollection.php
+++ b/apps/dav/lib/Comments/EntityTypeCollection.php
@@ -22,7 +22,6 @@
 namespace OCA\DAV\Comments;
 
 use OCP\Comments\ICommentsManager;
-use OCP\Files\Folder;
 use OCP\ILogger;
 use OCP\IUserManager;
 use OCP\IUserSession;
@@ -41,8 +40,6 @@ use Sabre\DAV\Exception\NotFound;
  * @package OCA\DAV\Comments
  */
 class EntityTypeCollection extends RootCollection {
-	/** @var  Folder */
-	protected $fileRoot;
 
 	/** @var ILogger */
 	protected $logger;
@@ -93,7 +90,6 @@ class EntityTypeCollection extends RootCollection {
 			$name,
 			$this->name,
 			$this->commentsManager,
-			$this->fileRoot,
 			$this->userManager,
 			$this->userSession,
 			$this->logger
@@ -121,5 +117,4 @@ class EntityTypeCollection extends RootCollection {
 		return !empty($nodes);
 	}
 
-
 }