diff --git a/file/lib/data/room/Room.class.php b/file/lib/data/room/Room.class.php
index ac48838..085a252 100644
--- a/file/lib/data/room/Room.class.php
+++ b/file/lib/data/room/Room.class.php
@@ -38,6 +38,7 @@ public function __toString() {
 	 */
 	public function canEnter(\wcf\data\user\User $user = null) {
 		if ($user === null) $user = WCF::getUser();
+		if (!$user->userID) return false;
 		
 		$ph = new \chat\system\permission\PermissionHandler($user);
 		$suspensions = Suspension::getSuspensionsForUser($user);
@@ -68,6 +69,7 @@ public function canEnter(\wcf\data\user\User $user = null) {
 	 */
 	public function canWrite(\wcf\data\user\User $user = null) {
 		if ($user === null) $user = WCF::getUser();
+		if (!$user->userID) return false;
 		
 		$ph = new \chat\system\permission\PermissionHandler($user);
 		$suspensions = Suspension::getSuspensionsForUser($user);