diff --git a/file/lib/page/ChatPage.class.php b/file/lib/page/ChatPage.class.php
index 22bd258..b123c09 100644
--- a/file/lib/page/ChatPage.class.php
+++ b/file/lib/page/ChatPage.class.php
@@ -144,6 +144,7 @@ public function readRoom() {
 		
 		$this->room = $this->rooms->search($this->roomID);
 		if (!$this->room) throw new \wcf\system\exception\IllegalLinkException();
+		if (!$this->room->canEnter()) throw new \wcf\system\exception\PermissionDeniedException();
 	}
 	
 	/**